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Komatsu R, Nakamura H, Hosono T, Masuda T, Jones CJP, Aplin JD, Mimura K, Endo M, Kimura T. Local vaginal bioelectrical impedance can predict preterm delivery in mice. Mol Hum Reprod 2024; 30:gaae021. [PMID: 38830032 DOI: 10.1093/molehr/gaae021] [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: 02/05/2024] [Revised: 04/26/2024] [Indexed: 06/05/2024] Open
Abstract
Preterm birth is a serious pregnancy complication that affects neonatal mortality, morbidity, and long-term neurological prognosis. Predicting spontaneous preterm delivery (PTD) is important for its management. While excluding the risk of PTD is important, identifying women at high risk of PTD is imperative for medical intervention. Currently used PTD prediction parameters in clinical practice have shown high negative predictive values, but low positive predictive values. We focused on sulfated and sialylated glycocalyx changes in the uterus and vagina prior to the onset of parturition and explored the potential of electrophysiological detection of these changes as a PTD prediction parameter with a high positive predictive value. In vivo local vaginal bioelectrical impedance (VZ) was measured using two different mouse PTD models. PTD was induced in ICR mice through the subcutaneous injection of mifepristone or local intrauterine injection of lipopolysaccharide (LPS). The PTD rates were 100% and 60% post-administration of mifepristone (16-20 h, n = 4) and LPS (12-24 h, n = 20), respectively. The local VZ values (15 and 10 h after mifepristone or LPS treatment, respectively) were significantly lower in the PTD group than in the non-PTD group. Receiver operator characteristic (ROC) curve analysis of VZ at 125 kHz as a predictor of PTD showed an area under the ROC curve of 1.00 and 0.77 and positive predictive values of 1.00 and 0.86, for the mifepristone and LPS models, respectively, suggesting that local VZ value can predict PTD. Histological examination of the LPS-treated model 6 h post-treatment revealed increased expression of sulfomucins and/or sulfated proteoglycans and sialomucins in the cervical epithelium, cervical stroma and vaginal stroma. In conclusion, local VZ values can determine sulfated and sialylated glycocalyx alterations within the uterus and vagina and might be a useful PTD prediction parameter.
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Affiliation(s)
- Reina Komatsu
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hitomi Nakamura
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takayoshi Hosono
- Graduate School of Biomedical Engineering, Osaka Electro-Communication University, Shijyo-nawate, Japan
| | - Tatsuo Masuda
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Carolyn J P Jones
- Division of Developmental Biology and Medicine, Maternal and Fetal Health Research Centre, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Manchester Academic Health Sciences Centre, St Mary's Hospital, Manchester, UK
- Maternal and Fetal Health Research Centre, St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - John D Aplin
- Division of Developmental Biology and Medicine, Maternal and Fetal Health Research Centre, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Manchester Academic Health Sciences Centre, St Mary's Hospital, Manchester, UK
- Maternal and Fetal Health Research Centre, St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Kazuya Mimura
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masayuki Endo
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynaecology, Osaka University Graduate School of Medicine, Suita, Japan
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2
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Khader N, Shchuka VM, Dorogin A, Shynlova O, Mitchell JA. SOX4 exerts contrasting regulatory effects on labor-associated gene promoters in myometrial cells. PLoS One 2024; 19:e0297847. [PMID: 38635533 PMCID: PMC11025800 DOI: 10.1371/journal.pone.0297847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/13/2024] [Indexed: 04/20/2024] Open
Abstract
The uterine muscular layer, or myometrium, undergoes profound changes in global gene expression during its progression from a quiescent state during pregnancy to a contractile state at the onset of labor. In this study, we investigate the role of SOX family transcription factors in myometrial cells and provide evidence for the role of SOX4 in regulating labor-associated genes. We show that Sox4 has elevated expression in the murine myometrium during a term laboring process and in two mouse models of preterm labor. Additionally, SOX4 differentially affects labor-associated gene promoter activity in cooperation with activator protein 1 (AP-1) dimers. SOX4 exerted no effect on the Gja1 promoter; a JUND-specific activation effect at the Fos promoter; a positive activation effect on the Mmp11 promoter with the AP-1 dimers; and surprisingly, we noted that the reporter expression of the Ptgs2 promoter in the presence of JUND and FOSL2 was repressed by the addition of SOX4. Our data indicate SOX4 may play a diverse role in regulating gene expression in the laboring myometrium in cooperation with AP-1 factors. This study enhances our current understanding of the regulatory network that governs the transcriptional changes associated with the onset of labor and highlights a new molecular player that may contribute to the labor transcriptional program.
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Affiliation(s)
- Nawrah Khader
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Virlana M. Shchuka
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON, Canada
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Jennifer A. Mitchell
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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3
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Yan S, Lyu L, Wang X, Wen H, Li Y, Li J, Yao Y, Zuo C, Xie S, Wang Z, Qi X. Pro-inflammatory cytokine IL1β1 participates in promoting parturition related pathways in the ovoviviparous teleost black rockfish (Sebastes schlegelii). Biol Reprod 2023; 109:693-704. [PMID: 37593921 DOI: 10.1093/biolre/ioad100] [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: 12/20/2022] [Revised: 07/24/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023] Open
Abstract
Along with the evolution process, the reproductive strategies evolved including oviparity, viviparity and ovoviviparity, to fit the residential environment maximize the survival rate of the off spring. In mammals, the key to the initiation of parturition is the inflammatory response at the maternal-fetal interface. As a pro-inflammatory cytokine, interleukin 1 beta (IL1β) plays an important role in the process of human parturition. While less is known about IL1β1 in teleost parturition, identification of the functions of IL1β1 in inducing the parturition, black rockfish, an ovoviviparity teleost, which provides over 60% nutrition supply for over 50 000 embryos though a placenta like structure during pregnant, was employed as the research model. In the present study, based on the gene cloning, we detected the expression pattern of both Il1b1 and its receptor perinatal period, as well as the localization to the ovary by in situ hybridization. The different expression genes in transcriptomic data of perinatal primary ovarian cells treated with the recombinant IL1β1 (rIL1β1) obtained by prokaryotic expression system were analyzed. Differentially expressed genes, functional enrichment and pathway analysis mainly included immune response, signal transduction and cell death. In summary, our research provides novel insights into the potential role of IL1β1 in the parturition of ovoviviparity teleost.
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Affiliation(s)
- Shaojing Yan
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Likang Lyu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Xiaojie Wang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Yun Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Jianshuang Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Yijia Yao
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Chenpeng Zuo
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Songyang Xie
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Zhijun Wang
- Weihai Taifeng Seawater Seedling Co., LTD, Weihai, PR China
| | - Xin Qi
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
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4
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Galaz J, Motomura K, Romero R, Liu Z, Garcia-Flores V, Tao L, Xu Y, Done B, Arenas-Hernandez M, Kanninen T, Farias-Jofre M, Miller D, Tarca AL, Gomez-Lopez N. A key role for NLRP3 signaling in preterm labor and birth driven by the alarmin S100B. Transl Res 2023; 259:46-61. [PMID: 37121539 PMCID: PMC10524625 DOI: 10.1016/j.trsl.2023.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/02/2023]
Abstract
Preterm birth remains the leading cause of neonatal morbidity and mortality worldwide. A substantial number of spontaneous preterm births occur in the context of sterile intra-amniotic inflammation, a condition that has been mechanistically proven to be triggered by alarmins. However, sterile intra-amniotic inflammation still lacks treatment. The NLRP3 inflammasome has been implicated in sterile intra-amniotic inflammation; yet, its underlying mechanisms, as well as the maternal and fetal contributions to this signaling pathway, are unclear. Herein, by utilizing a translational and clinically relevant model of alarmin-induced preterm labor and birth in Nlrp3-/- mice, we investigated the role of NLRP3 signaling by using imaging and molecular biology approaches. Nlrp3 deficiency abrogated preterm birth and the resulting neonatal mortality induced by the alarmin S100B by impeding the premature activation of the common pathway of labor as well as by dampening intra-amniotic and fetal inflammation. Moreover, Nlrp3 deficiency altered leukocyte infiltration and functionality in the uterus and decidua. Last, embryo transfer revealed that maternal and fetal Nlrp3 signaling contribute to alarmin-induced preterm birth and neonatal mortality, further strengthening the concept that both individuals participate in the complex process of preterm parturition. These findings provide novel insights into sterile intra-amniotic inflammation, a common etiology of preterm labor and birth, suggesting that the adverse perinatal outcomes resulting from prematurity can be prevented by targeting NLRP3 signaling.
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Affiliation(s)
- Jose Galaz
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Kenichiro Motomura
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Roberto Romero
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan
| | - Zhenjie Liu
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Valeria Garcia-Flores
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Li Tao
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Yi Xu
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Bogdan Done
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Marcia Arenas-Hernandez
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Tomi Kanninen
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Marcelo Farias-Jofre
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Derek Miller
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Adi L Tarca
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan
| | - Nardhy Gomez-Lopez
- Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, Michigan; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan; Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan.
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5
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Paul M, Zakar T, Phung J, Gregson A, Barreda AP, Butler TA, Walker FR, Pennell C, Smith R, Paul JW. 20α-Hydroxysteroid Dehydrogenase Expression in the Human Myometrium at Term and Preterm Birth: Relationships to Fetal Sex and Maternal Body Mass Index. Reprod Sci 2023:10.1007/s43032-023-01183-2. [PMID: 36765000 DOI: 10.1007/s43032-023-01183-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 01/27/2023] [Indexed: 02/12/2023]
Abstract
The mechanism by which human labor is initiated in the presence of elevated circulating progesterone levels remains unknown. Recent evidence indicates that the progesterone-metabolizing enzyme, 20α-hydroxysteroid dehydrogenase (20α-HSD), encoded by the gene AKR1C1, may contribute to functional progesterone withdrawal. We found that AKR1C1 expression significantly increased with labor onset in term myometrium, but not in preterm myometrium. Among preterm laboring deliveries, clinically diagnosed chorioamnionitis was associated with significantly elevated AKR1C1 expression. AKR1C1 expression positively correlated with BMI before labor and negatively correlated with BMI during labor. Analysis by fetal sex showed that AKR1C1 expression was significantly higher in women who delivered male babies compared to women who delivered female babies at term, but not preterm. Further, in pregnancies where the fetus was female, AKR1C1 expression positively correlated with the mother's age and BMI at the time of delivery. In conclusion, the increase in myometrial AKR1C1 expression with term labor is consistent with 20α-HSD playing a role in local progesterone metabolism to promote birth. Interestingly, this role appears to be specific to term pregnancies where the fetus is male. Upregulated AKR1C1 expression in the myometrium at preterm in-labor with clinical chorioamnionitis suggests that increased 20α-HSD activity is a mechanism through which inflammation drives progesterone withdrawal in preterm labor. The link between AKR1C1 expression and maternal BMI may provide insight into why maternal obesity is often associated with dysfunctional labor. Higher myometrial AKR1C1 expression in male pregnancies may indicate fetal sex-related differences in the mechanisms that precipitate labor onset at term.
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Affiliation(s)
- Marina Paul
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- Centre for Rehab Innovations, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Tamas Zakar
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
- John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Jason Phung
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
- John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Amy Gregson
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
| | - Anna Paredes Barreda
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
| | - Trent A Butler
- John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Frederick R Walker
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- Centre for Rehab Innovations, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Craig Pennell
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
- John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Roger Smith
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia
- John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Jonathan W Paul
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia.
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, 2308, Australia.
- Mothers and Babies Research Centre, New Lambton Heights, NSW, 2305, Australia.
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6
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Garcia-Flores V, Romero R, Peyvandipour A, Galaz J, Pusod E, Panaitescu B, Miller D, Xu Y, Tao L, Liu Z, Tarca AL, Pique-Regi R, Gomez-Lopez N. A single-cell atlas of murine reproductive tissues during preterm labor. Cell Rep 2023; 42:111846. [PMID: 36599348 PMCID: PMC9946687 DOI: 10.1016/j.celrep.2022.111846] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/11/2022] [Accepted: 11/24/2022] [Indexed: 01/05/2023] Open
Abstract
Preterm birth, the leading cause of perinatal morbidity and mortality worldwide, frequently results from the syndrome of preterm labor. The best-established causal link to preterm labor is intra-amniotic infection, which involves premature activation of the parturition cascade in the reproductive tissues. Herein, we utilize single-cell RNA sequencing (scRNA-seq) to generate a single-cell atlas of the murine uterus, decidua, and cervix in a model of infection-induced preterm labor. We show that preterm labor affects the transcriptomic profiles of specific immune and non-immune cell subsets. Shared and tissue-specific gene expression signatures are identified among affected cells. Determination of intercellular communications implicates specific cell types in preterm labor-associated signaling pathways across tissues. In silico comparison of murine and human uterine cell-cell interactions reveals conserved signaling pathways implicated in labor. Thus, our scRNA-seq data provide insights into the preterm labor-driven cellular landscape and communications in reproductive tissues.
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Affiliation(s)
- Valeria Garcia-Flores
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824, USA; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; Detroit Medical Center, Detroit, MI 48201, USA.
| | - Azam Peyvandipour
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA,Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Errile Pusod
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Bogdan Panaitescu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Yi Xu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Li Tao
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Zhenjie Liu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Adi L. Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI 48202, USA
| | - Roger Pique-Regi
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA.
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI 48201, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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7
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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 DOI: 10.1093/biolre/ioac182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 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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8
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Shchuka VM, Khader N, Dorogin A, Shynlova O, Mitchell JA. MYB and ELF3 differentially modulate labor-inducing gene expression in myometrial cells. PLoS One 2023; 18:e0271081. [PMID: 36595497 PMCID: PMC9810189 DOI: 10.1371/journal.pone.0271081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 12/06/2022] [Indexed: 01/04/2023] Open
Abstract
Spontaneous uterine contractions are initiated when smooth muscle cells (SMCs) within the uterine muscle, or myometrium, transition from a functionally dormant to an actively contractile phenotype at the end of the pregnancy period. We know that this process is accompanied by gestational time point-specific differences in the SMC transcriptome, which can be modulated by the activator protein 1 (AP-1), nuclear factor kappa beta (NF-κβ), estrogen receptor (ER), and progesterone receptor (PR) transcription factors. Less is known, however, about the additional proteins that might assist these factors in conferring the transcriptional changes observed at labor onset. Here, we present functional evidence for the roles of two proteins previously understudied in the SMC context-MYB and ELF3-which can contribute to the regulation of labor-driving gene transcription. We show that the MYB and ELF3 genes exhibit elevated transcript expression levels in mouse and human myometrial tissues during spontaneous term labor. The expression of both genes was also significantly increased in mouse myometrium during preterm labor induced by the progesterone antagonist mifepristone (RU486), but not during infection-simulating preterm labor induced by intrauterine infusion of lipopolysaccharide (LPS). Furthermore, both MYB and ELF3 proteins affect labor-driving gene promoter activity, although in surprisingly opposing ways: Gja1 and Fos promoter activation increases in the presence of MYB and decreases in the presence of ELF3. Collectively, our study adds to the current understanding of the transcription factor network that defines the transcriptomes of SMCs during late gestation and implicates two new players in the control of labor timing.
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Affiliation(s)
- Virlana M. Shchuka
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- * E-mail: (VMS); (JAM); (OS)
| | - Nawrah Khader
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, Ontario, Canada
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, Ontario, Canada
- * E-mail: (VMS); (JAM); (OS)
| | - Jennifer A. Mitchell
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- * E-mail: (VMS); (JAM); (OS)
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9
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Vidal MS, Lintao RCV, Severino MEL, Tantengco OAG, Menon R. Spontaneous preterm birth: Involvement of multiple feto-maternal tissues and organ systems, differing mechanisms, and pathways. Front Endocrinol (Lausanne) 2022; 13:1015622. [PMID: 36313741 PMCID: PMC9606232 DOI: 10.3389/fendo.2022.1015622] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
Survivors of preterm birth struggle with multitudes of disabilities due to improper in utero programming of various tissues and organ systems contributing to adult-onset diseases at a very early stage of their lives. Therefore, the persistent rates of low birth weight (birth weight < 2,500 grams), as well as rates of neonatal and maternal morbidities and mortalities, need to be addressed. Active research throughout the years has provided us with multiple theories regarding the risk factors, initiators, biomarkers, and clinical manifestations of spontaneous preterm birth. Fetal organs, like the placenta and fetal membranes, and maternal tissues and organs, like the decidua, myometrium, and cervix, have all been shown to uniquely respond to specific exogenous or endogenous risk factors. These uniquely contribute to dynamic changes at the molecular and cellular levels to effect preterm labor pathways leading to delivery. Multiple intervention targets in these different tissues and organs have been successfully tested in preclinical trials to reduce the individual impacts on promoting preterm birth. However, these preclinical trial data have not been effectively translated into developing biomarkers of high-risk individuals for an early diagnosis of the disease. This becomes more evident when examining the current global rate of preterm birth, which remains staggeringly high despite years of research. We postulate that studying each tissue and organ in silos, as how the majority of research has been conducted in the past years, is unlikely to address the network interaction between various systems leading to a synchronized activity during either term or preterm labor and delivery. To address current limitations, this review proposes an integrated approach to studying various tissues and organs involved in the maintenance of normal pregnancy, promotion of normal parturition, and more importantly, contributions towards preterm birth. We also stress the need for biological models that allows for concomitant observation and analysis of interactions, rather than focusing on these tissues and organ in silos.
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Affiliation(s)
- Manuel S. Vidal
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ryan C. V. Lintao
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Mary Elise L. Severino
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ourlad Alzeus G. Tantengco
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines, Manila, Philippines
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States
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10
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Ali HES, Scoggin K, Murase H, Norris J, Menarim B, Dini P, Ball B. Transcriptomic and histochemical analysis reveal the complex regulatory networks in equine Chorioallantois during spontaneous term labor. Biol Reprod 2022; 107:1296-1310. [PMID: 35913756 DOI: 10.1093/biolre/ioac154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
The equine chorioallantois (CA) undergoes complex physical and biochemical changes during labor. However, the molecular mechanisms controlling these changes are still unclear. Therefore, the current study aimed to characterize the transcriptome of equine CA during spontaneous labor and compare it to that of normal preterm CA. Placental samples were collected postpartum from mares with normal term labor (TL group, n = 4) and from preterm not in labor mares (330 days GA; PTNL group, n = 4). Our study identified 4137 differentially expressed genes (DEGs) (1820 upregulated and 2317 downregulated) in CA during TL as compared to PTNL. TL was associated with the upregulation of several pro-inflammatory mediators (MHC-I, MHC-II, NLRP3, CXCL8, and MIF). Also, TL was associated with the upregulation of matrix metalloproteinase (MMP1, MMP2, MMP3, and MMP9) with subsequent extracellular matrix degradation and apoptosis, as reflected by upregulation of several apoptosis-related genes (ATF3, ATF4, FAS, FOS, and BIRC3). In addition, TL was associated with downregulation of 21 transcripts coding for collagens. The upregulation of proteases, along with the downregulation of collagens, is believed to be implicated in separation and rupture of the CA during TL. Additionally, TL was associated with downregulation of transcripts coding for proteins essential for progestin synthesis (SRD5A1 and AKR1C1) and angiogenesis (VEGFA and RTL1), as well as upregulation of prostaglandin synthesis-related genes (PTGS2 and PTGES), which could reflect the physiological switch in placental endocrinology and function during TL. In conclusion, our findings revealed the equine CA gene expression signature in spontaneous labor at term, which improves our understanding of the molecular mechanisms triggering labor.
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Affiliation(s)
- Hossam El-Sheikh Ali
- Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, USA.,Theriogenology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Dakahlia, Egypt
| | - Kirsten Scoggin
- Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, USA
| | - Harutaka Murase
- Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan
| | - Jamie Norris
- Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, USA
| | - Bruno Menarim
- Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, USA
| | - Pouya Dini
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Barry Ball
- Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, USA
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11
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Zhong Z, Liu Z, Zheng R, Chai J, Jiang S. miR-132-3p Modulates DUSP9-Dependent p38/JNK Signaling Pathways to Enhance Inflammation in the Amnion Leading to Labor. Int J Mol Sci 2022; 23:ijms23031864. [PMID: 35163786 PMCID: PMC8836965 DOI: 10.3390/ijms23031864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 12/10/2022] Open
Abstract
Labor is a process of inflammation and hormonal changes involving both fetal and maternal compartments. MicroRNA-132-3p (miR-132-3p) has been reported to be involved in the development of inflammation-related diseases. However, little is known about its potential role in labor onset. This study aimed to explore the mechanism of miR-132-3p in amnion for labor initiation. In the mouse amnion membranes, the expression of miR-132-3p was found to increase gradually during late gestation. In human amniotic epithelial cell line (WISH), upregulation of miR-132-3p was found to increase proinflammatory cytokines and cyclooxygenase 2 (COX2) as well as prostaglandin E2 (PGE2), which was suppressed by miR-132-3p inhibitor. Dual-specificity phosphatase 9 (DUSP9) was identified as a novel target gene of miR-132-3p, which could be negatively regulated by miR-132-3p. DUSP9 was present in the mouse amnion epithelial cells, with a decrease in its abundance at 18.5 days post coitum (dpc) relative to 15.5 dpc. Silencing DUSP9 was found to facilitate the expression of proinflammatory cytokines and COX2 as well as PGE2 secretion in WISH cells, which could be attenuated by p38 inhibitor SB203580 or JNK inhibitor SP600125. Additionally, intraperitoneal injection of pregnant mice with miR-132-3p agomir not only caused preterm birth, but also promoted the abundance of COX2 as well as phosphorylated JNK and p38 levels, and decreased DUSP9 level in mouse amnion membranes. Collectively, miR-132-3p might participate in inflammation and PGE2 release via targeting DUSP9-dependent p38 and JNK signaling pathways to cause preterm birth.
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12
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Preterm labor is a distinct process from term labor following computational analysis of human myometrium. Am J Obstet Gynecol 2022; 226:106.e1-106.e16. [PMID: 34245680 DOI: 10.1016/j.ajog.2021.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/09/2021] [Accepted: 07/03/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND The onset of the term human parturition involves myometrial gene expression changes to transform the uterus from a quiescent to a contractile phenotype. It is uncertain whether the same changes occur in the uterus during preterm labor. OBJECTIVE This study aimed to compare the myometrial gene expression between term and preterm labor and to determine whether the presence of acute clinical chorioamnionitis or twin gestation affects these signatures. STUDY DESIGN Myometrial specimens were collected during cesarean delivery from the following 7 different groups of patients: term not in labor (n=31), term labor (n=13), preterm not in labor (n=21), preterm labor with acute clinical chorioamnionitis (n=6), preterm labor with no acute clinical chorioamnionitis (n=9), twin preterm not in labor (n=8), and twin preterm labor with no acute clinical chorioamnionitis (n=5). RNA was extracted, reverse transcribed and quantitative polymerase chain reactions were performed on 44 candidate genes (with evidence for differential expression in human term labor) using the Fluidigm platform. Computational analysis was performed using 2-class unpaired Wilcoxon tests and principal component analysis. RESULTS Computational analysis revealed that gene expression in the preterm myometrium, irrespective of whether in labor or not in labor, clustered tightly and is clearly different from the term labor and term not-in-labor groups. This was true for both singleton and twin pregnancies. Principal component analysis showed that 57% of the variation was explained by 3 principal components. These 44 genes interact in themes of prostaglandin activity and inflammatory signaling known to be important during term labor, but are not a full representation of the myometrium transcriptional activity. CONCLUSION The myometrial contractions associated with preterm labor are associated with a pattern of gene expression that is distinct from term labor. Therefore, preterm labor may be initiated by a different myometrial process or processes outside the myometrium.
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13
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Huang D, Ran Y, Liu Z, He J, Yin N, Qi H. IL-27 Mediates Pro-Inflammatory Effects via the ERK Signaling Pathway During Preterm Labor. Front Immunol 2021; 12:709229. [PMID: 34691022 PMCID: PMC8531808 DOI: 10.3389/fimmu.2021.709229] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/21/2021] [Indexed: 11/13/2022] Open
Abstract
Preterm labor (PTL) is a multifactorial syndrome that results in birth prior to 37 weeks of gestation. However, the specific molecular mechanisms underlying this condition have yet to be elucidated. Previous research demonstrated that the abnormal expression of IL-27, and its receptors, played a role in the pathophysiology of preterm labor. In the present study, we established a Lipopolysaccharide (LPS)-stimulated, infection-induced, preterm mouse model based on wild-type C57BL/6 mice and WSX-1-/-C57BL/6 mice. WSX-1 knockdown led to a significant delay in birth by 11.32 ± 2.157h. In addition, compared with wild-type C57B/6 mice, the expression levels of IFN-γ, IL-1β, IL-6, TNF-α, and CXCL10, in the fetal membrane and myometrium of WSX-1-/-mice were significantly lower, particularly in the myometrium. We also confirmed similar pro-inflammatory effects arising from IL-27 in human amniotic cell line (WISH) and human myometrial smooth muscle cell line (HMSMC). Once stimulated by LPS, the pro-inflammatory action exhibited a synergistic effect and appeared to be time-dependent. Finally, we demonstrated that LY3214996, an inhibitor of the ERK pathway, significantly inhibited the pro-inflammatory effect mediated by IL-27. Overall, our data confirmed that the inflammatory effect mediated by the IL-27/IFN-r/ERK axis is involved in preterm labor. Our findings, therefore, provide an enhancement in our etiological understanding of the mechanisms underlying PTL.
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Affiliation(s)
- Dongni Huang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Yuxin Ran
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Zheng Liu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Jie He
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Nanlin Yin
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Center for Reproductive Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Center for Reproductive Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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14
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Gomez-Lopez N, Romero R, Galaz J, Bhatti G, Done B, Miller D, Ghita C, Motomura K, Farias-Jofre M, Jung E, Pique-Regi R, Hassan SS, Chaiworapongsa T, Tarca AL. Transcriptome changes in maternal peripheral blood during term parturition mimic perturbations preceding spontaneous Preterm birth†. Biol Reprod 2021; 106:185-199. [PMID: 34686873 DOI: 10.1093/biolre/ioab197] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 11/14/2022] Open
Abstract
The complex physiologic process of parturition includes the onset of labor, which requires the orchestrated stimulation of a common pathway involving uterine contractility, cervical ripening, and chorioamniotic membrane activation. However, the labor-specific processes taking place in these tissues have limited use as predictive biomarkers unless they can be probed in non-invasive samples, such as the peripheral blood. Herein, we utilized a transcriptomic dataset to assess labor-specific changes in the peripheral blood of women who delivered at term. We identified a set of genes that were differentially expressed with labor and enriched for immunological processes, and these gene expression changes were strongly correlated with results from prior studies, providing in silico validation of our findings. We then identified significant correlations between labor-specific transcriptomic changes in the maternal circulation and those reported in the chorioamniotic membranes, myometrium, and cervix of women at term, demonstrating that tissue-specific labor signatures are partly mirrored in the peripheral blood. Last, we demonstrated a significant overlap between the peripheral blood transcriptomic changes in term parturition and those observed in asymptomatic women prior to the diagnosis of preterm prelabor rupture of membranes who delivered preterm. Collectively, we provide evidence that the normal process of labor at term is characterized by a unique immunological expression signature, which may serve as a useful tool for assessing labor status and potentially identifying women at risk for preterm birth.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA.,Detroit Medical Center, Detroit, MI, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Gaurav Bhatti
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bogdan Done
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Corina Ghita
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Marcelo Farias-Jofre
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roger Pique-Regi
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Sonia S Hassan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, USA
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15
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Ando K, Hédou JJ, Feyaerts D, Han X, Ganio EA, Tsai ES, Peterson LS, Verdonk F, Tsai AS, Marić I, Wong RJ, Angst MS, Aghaeepour N, Stevenson DK, Blumenfeld YJ, Sultan P, Carvalho B, Stelzer IA, Gaudillière B. A Peripheral Immune Signature of Labor Induction. Front Immunol 2021; 12:725989. [PMID: 34566984 PMCID: PMC8458888 DOI: 10.3389/fimmu.2021.725989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/20/2021] [Indexed: 11/23/2022] Open
Abstract
Approximately 1 in 4 pregnant women in the United States undergo labor induction. The onset and establishment of labor, particularly induced labor, is a complex and dynamic process influenced by multiple endocrine, inflammatory, and mechanical factors as well as obstetric and pharmacological interventions. The duration from labor induction to the onset of active labor remains unpredictable. Moreover, prolonged labor is associated with severe complications for the mother and her offspring, most importantly chorioamnionitis, uterine atony, and postpartum hemorrhage. While maternal immune system adaptations that are critical for the maintenance of a healthy pregnancy have been previously characterized, the role of the immune system during the establishment of labor is poorly understood. Understanding maternal immune adaptations during labor initiation can have important ramifications for predicting successful labor induction and labor complications in both induced and spontaneous types of labor. The aim of this study was to characterize labor-associated maternal immune system dynamics from labor induction to the start of active labor. Serial blood samples from fifteen participants were collected immediately prior to labor induction (baseline) and during the latent phase until the start of active labor. Using high-dimensional mass cytometry, a total of 1,059 single-cell immune features were extracted from each sample. A multivariate machine-learning method was employed to characterize the dynamic changes of the maternal immune system after labor induction until the establishment of active labor. A cross-validated linear sparse regression model (least absolute shrinkage and selection operator, LASSO) predicted the minutes since induction of labor with high accuracy (R = 0.86, p = 6.7e-15, RMSE = 277 min). Immune features most informative for the model included STAT5 signaling in central memory CD8+ T cells and pro-inflammatory STAT3 signaling responses across multiple adaptive and innate immune cell subsets. Our study reports a peripheral immune signature of labor induction, and provides important insights into biological mechanisms that may ultimately predict labor induction success as well as complications, thereby facilitating clinical decision-making to improve maternal and fetal well-being.
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Affiliation(s)
- Kazuo Ando
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Julien J Hédou
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Dorien Feyaerts
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Xiaoyuan Han
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States.,Department of Biomedical Sciences, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, CA, United States
| | - Edward A Ganio
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Eileen S Tsai
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Laura S Peterson
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Franck Verdonk
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Amy S Tsai
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Ivana Marić
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Ronald J Wong
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Martin S Angst
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Nima Aghaeepour
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States.,Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States.,Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA, United States
| | - David K Stevenson
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
| | - Yair J Blumenfeld
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, United States
| | - Pervez Sultan
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Brendan Carvalho
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Ina A Stelzer
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Brice Gaudillière
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States.,Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States
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16
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Cappelletti M, Presicce P, Feiyang M, Senthamaraikannan P, Miller LA, Pellegrini M, Sim MS, Jobe AH, Divanovic S, Way SS, Chougnet CA, Kallapur SG. The induction of preterm labor in rhesus macaques is determined by the strength of immune response to intrauterine infection. PLoS Biol 2021; 19:e3001385. [PMID: 34495952 PMCID: PMC8452070 DOI: 10.1371/journal.pbio.3001385] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 09/20/2021] [Accepted: 08/04/2021] [Indexed: 12/18/2022] Open
Abstract
Intrauterine infection/inflammation (IUI) is a major contributor to preterm labor (PTL). However, IUI does not invariably cause PTL. We hypothesized that quantitative and qualitative differences in immune response exist in subjects with or without PTL. To define the triggers for PTL, we developed rhesus macaque models of IUI driven by lipopolysaccharide (LPS) or live Escherichia coli. PTL did not occur in LPS challenged rhesus macaques, while E. coli–infected animals frequently delivered preterm. Although LPS and live E. coli both caused immune cell infiltration, E. coli–infected animals showed higher levels of inflammatory mediators, particularly interleukin 6 (IL-6) and prostaglandins, in the chorioamnion-decidua and amniotic fluid (AF). Neutrophil infiltration in the chorio-decidua was a common feature to both LPS and E. coli. However, neutrophilic infiltration and IL6 and PTGS2 expression in the amnion was specifically induced by live E. coli. RNA sequencing (RNA-seq) analysis of fetal membranes revealed that specific pathways involved in augmentation of inflammation including type I interferon (IFN) response, chemotaxis, sumoylation, and iron homeostasis were up-regulated in the E. coli group compared to the LPS group. Our data suggest that the intensity of the host immune response to IUI may determine susceptibility to PTL.
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Affiliation(s)
- Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Ma Feiyang
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- Institute for Quantitative and Computational Biosciences–Collaboratory, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Paranthaman Senthamaraikannan
- Division of Neonatology and Pulmonary Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Lisa A. Miller
- California National Primate Research Center, University of California Davis, Davis, California, United States of America
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- Institute for Quantitative and Computational Biosciences–Collaboratory, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Myung S. Sim
- Department of Medicine Statistics Core, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Alan H. Jobe
- Division of Neonatology and Pulmonary Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Senad Divanovic
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Sing Sing Way
- Infectious Diseases, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Claire A. Chougnet
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Suhas G. Kallapur
- Divisions of Neonatology and Developmental Biology, UCLA Mattel Children’s Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
- * E-mail:
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17
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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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18
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Zeng H, Han X, Zhu Z, Yu S, Mei S, Cheng X, Zhang W, Zhang G, Fang D. Increased uterine NLRP3 inflammasome and leucocyte infiltration in a rat model of preeclampsia. Am J Reprod Immunol 2021; 86:e13493. [PMID: 34375018 DOI: 10.1111/aji.13493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/09/2021] [Accepted: 08/04/2021] [Indexed: 11/30/2022] Open
Abstract
The disruption of the inflammatory microenvironment in the uterus affects pregnancy outcome. However, the exact quantification and distribution of leukocyte subpopulations in the uterus in preeclampsia (PE) have not been clearly characterized. Inflammasomes promote the release of proinflammatory cytokines interleukin (IL)-β and IL-18. A higher expression of NLRP3 inflammasome in placentas contributes to excessive inflammation in PE. However, related studies on the uterus are scarce. We aimed to investigate changes in the infiltration of leukocyte subpopulations in decidual and uterine tissues, and explore the role of activation of uterine NLRP3 inflammasomes in PE. Decidual tissues were collected from normotensive pregnant women and preeclamptic women. A PE-like model was established via administration of lipopolysaccharide to normal pregnant rats. Uterine and decidual tissues were collected from all experimental groups. It was found that the number of leukocytes was significantly elevated in decidual and uterine tissues in PE patients compared to normal controls. The leukocytes (predominantly macrophages and NK cells) particularly infiltrated into the decidua and uterine decidua in PE-like rats, and these were sparse in the myometrium. The NLRP3 immunoreactivity in the uterus was extremely little in control rats, its immunoreactivity and caspase-1 immunoreactivity were significantly elevated in the PE-like rats; the mRNA expression results also indicated an upward trend in the activation of NLRP3 inflammasomes. These results support that leucocyte infiltration in the decidua and uterine deciduas, and the activation of NLRP3 inflammasome in the uterus, which participate in the pathogenesis, are responsible for the excessive inflammation at the maternal-fetal interface during PE. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Huiqian Zeng
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Xinjia Han
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Zhiqin Zhu
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Shengjun Yu
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Shanshan Mei
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Xi Cheng
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Weiqiang Zhang
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Guanglan Zhang
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
| | - Dajun Fang
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University
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19
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El-Sheikh Ali H, Loux SC, Kennedy L, Scoggin KE, Dini P, Fedorka CE, Kalbfleisch TS, Esteller-Vico A, Horohov DW, Erol E, Carter CN, Smith JL, Ball BA. Transcriptomic analysis of equine chorioallantois reveals immune networks and molecular mechanisms involved in nocardioform placentitis. Vet Res 2021; 52:103. [PMID: 34238364 PMCID: PMC8268225 DOI: 10.1186/s13567-021-00972-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 06/21/2021] [Indexed: 12/13/2022] Open
Abstract
Nocardioform placentitis (NP) continues to result in episodic outbreaks of abortion and preterm birth in mares and remains a poorly understood disease. The objective of this study was to characterize the transcriptome of the chorioallantois (CA) of mares with NP. The CA were collected from mares with confirmed NP based upon histopathology, microbiological culture and PCR for Amycolatopsis spp. Samples were collected from the margin of the NP lesion (NPL, n = 4) and grossly normal region (NPN, n = 4). Additionally, CA samples were collected from normal postpartum mares (Control; CRL, n = 4). Transcriptome analysis identified 2892 differentially expressed genes (DEGs) in NPL vs. CRL and 2450 DEGs in NPL vs. NPN. Functional genomics analysis elucidated that inflammatory signaling, toll-like receptor signaling, inflammasome activation, chemotaxis, and apoptosis pathways are involved in NP. The increased leukocytic infiltration in NPL was associated with the upregulation of matrix metalloproteinase (MMP1, MMP3, and MMP8) and apoptosis-related genes, such as caspases (CASP3 and CASP7), which could explain placental separation associated with NP. Also, NP was associated with downregulation of several placenta-regulatory genes (ABCG2, GCM1, EPAS1, and NR3C1), angiogenesis-related genes (VEGFA, FLT1, KDR, and ANGPT2), and glucose transporter coding genes (GLUT1, GLUT10, and GLUT12), as well as upregulation of hypoxia-related genes (HIF1A and EGLN3), which could elucidate placental insufficiency accompanying NP. In conclusion, our findings revealed for the first time, the key regulators and mechanisms underlying placental inflammation, separation, and insufficiency during NP, which might lead to the development of efficacious therapies or diagnostic aids by targeting the key molecular pathways.
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Affiliation(s)
- Hossam El-Sheikh Ali
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.,Theriogenology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Shavahn C Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Laura Kennedy
- UK Veterinary Diagnostic Laboratory, University of Kentucky, Lexington, KY, 40546, USA
| | - Kirsten E Scoggin
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Pouya Dini
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Carleigh E Fedorka
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Theodore S Kalbfleisch
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | | | - David W Horohov
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Erdal Erol
- UK Veterinary Diagnostic Laboratory, University of Kentucky, Lexington, KY, 40546, USA
| | - Craig N Carter
- UK Veterinary Diagnostic Laboratory, University of Kentucky, Lexington, KY, 40546, USA
| | - Jackie L Smith
- UK Veterinary Diagnostic Laboratory, University of Kentucky, Lexington, KY, 40546, USA
| | - Barry A Ball
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
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20
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Khader N, Shchuka VM, Shynlova O, Mitchell JA. Transcriptional control of parturition: insights from gene regulation studies in the myometrium. Mol Hum Reprod 2021; 27:gaab024. [PMID: 33823545 PMCID: PMC8126590 DOI: 10.1093/molehr/gaab024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/09/2021] [Indexed: 12/19/2022] Open
Abstract
The onset of labour is a culmination of a series of highly coordinated and preparatory physiological events that take place throughout the gestational period. In order to produce the associated contractions needed for foetal delivery, smooth muscle cells in the muscular layer of the uterus (i.e. myometrium) undergo a transition from quiescent to contractile phenotypes. Here, we present the current understanding of the roles transcription factors play in critical labour-associated gene expression changes as part of the molecular mechanistic basis for this transition. Consideration is given to both transcription factors that have been well-studied in a myometrial context, i.e. activator protein 1, progesterone receptors, oestrogen receptors, and nuclear factor kappa B, as well as additional transcription factors whose gestational event-driving contributions have been demonstrated more recently. These transcription factors may form pregnancy- and labour-associated transcriptional regulatory networks in the myometrium to modulate the timing of labour onset. A more thorough understanding of the transcription factor-mediated, labour-promoting regulatory pathways holds promise for the development of new therapeutic treatments that can be used for the prevention of preterm labour in at-risk women.
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Affiliation(s)
- Nawrah Khader
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Virlana M Shchuka
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
- Department of Obstetrics & Gynaecology, University of Toronto, ON, Canada
| | - Jennifer A Mitchell
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
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21
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El-Sheikh Ali H, Dini P, Scoggin K, Loux S, Fedorka C, Boakari Y, Norris J, Esteller-Vico A, Kalbfleisch T, Ball B. Transcriptomic analysis of equine placenta reveals key regulators and pathways involved in ascending placentitis†. Biol Reprod 2020; 104:638-656. [PMID: 33345276 DOI: 10.1093/biolre/ioaa209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/07/2020] [Accepted: 11/07/2020] [Indexed: 12/21/2022] Open
Abstract
Improved understanding of the molecular mechanisms underlying ascending equine placentitis holds the potential for the development of new diagnostic tools and therapies to forestall placentitis-induced preterm labor. The current study characterized the equine placental transcriptome (chorioallantois [CA] and endometrium [EN]) during placentitis (placentitis group, n = 6) in comparison to gestationally-matched controls (control group, n = 6). Transcriptome analysis identified 2953 and 805 differentially expressed genes in CA and EN during placentitis, respectively. Upstream regulator analysis revealed the central role of toll-like receptors (TLRs) in triggering the inflammatory signaling, and consequent immune-cell chemotaxis. Placentitis was associated with the upregulation of matrix metalloproteinase (MMP1, MMP2, and MMP9) and apoptosis-related genes such as caspases (CASP3, CASP4, and CASP7) in CA. Also, placentitis was associated with downregulation of transcripts coding for proteins essential for placental steroidogenesis (SRD5A1 and AKR1C1), progestin signaling (PGRMC1 and PXR) angiogenesis (VEGFA, VEGFR2, and VEGFR3), and nutrient transport (GLUT12 and SLC1A4), as well as upregulation of hypoxia-related genes (HIF1A and EGLN3), which could explain placental insufficiency during placentitis. Placentitis was also associated with aberrant expression of several placenta-regulatory genes, such as PLAC8, PAPPA, LGALS1, ABCG2, GCM1, and TEPP, which could negatively affect placental functions. In conclusion, our findings revealed for the first time the key regulators and mechanisms underlying placental inflammation, separation, and insufficiency during equine placentitis, which might lead to the development of efficacious therapies or diagnostic aids by targeting the key molecular pathways.
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Affiliation(s)
- Hossam El-Sheikh Ali
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA.,Theriogenology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Dakahlia, Egypt
| | - Pouya Dini
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA.,Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Kirsten Scoggin
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Shavahn Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Carleigh Fedorka
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Yatta Boakari
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Jamie Norris
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Alejandro Esteller-Vico
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA.,Department of Biomedical and Diagnostic Sciences, University of Tennessee, USA
| | - Theodore Kalbfleisch
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Barry Ball
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
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22
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El-Sheikh Ali H, Scoggin K, Linhares Boakari Y, Dini P, Loux S, Fedorka C, Esteller-Vico A, Ball B. Kinetics of placenta-specific 8 (PLAC8) in equine placenta during pregnancy and placentitis. Theriogenology 2020; 160:81-89. [PMID: 33189077 DOI: 10.1016/j.theriogenology.2020.10.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/14/2020] [Accepted: 10/26/2020] [Indexed: 01/07/2023]
Abstract
Placenta-specific 8 (PLAC8) is one of the placenta-regulatory genes which is highly conserved among eutherian mammals. However, little is known about its expression in equine placenta (chorioallantois; CA and endometrium; EN) during normal and abnormal pregnancy. Therefore, the current study was designed to 1) elucidate the expression of PLAC8 in equine embryonic membranes during the preimplantation period, 2) characterize the expression profile of PLAC8 in equine CA (45d, 4mo, 6mo, 10 mo, 11 mo and postpartum) and EN (14d, 4mo, 6mo, 10 mo, and 11 mo) obtained from pregnant mares (n = 4/timepoint), as well as, d14 non-pregnant EN (n = 4), and 3) investigate the expression profile of PLAC8 in ascending placentitis (n = 5) and in nocardioform placentitis (n = 6) in comparison to normal CA. In the preimplantation period, PLAC8 mRNA was not abundant in the trophectoderm of d8 equine embryo and d14 conceptus, while it was abundant later in d 30, 31, 34, and 45 chorion. In normal pregnancy, PLAC8 mRNA expression in CA at 45 d gradually decline to reach nadir at 6mo before gradually increasing to its peak at 11mo and postpartum CA. The mRNA expression of PLAC8 was significantly upregulated in CA from mares with ascending and nocardioform placentitis compared to control mares. Immunohistochemistry revealed that PLAC8 is localized in equine chorionic epithelium and immune cells. Our results revealed that PLAC8 expression in equine chorion is dynamic during pregnancy and is regulated in an implantation-dependent manner. Moreover, PLAC8 is implicated in the immune response in CA during equine ascending placentitis and nocardioform placentitis.
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Affiliation(s)
- Hossam El-Sheikh Ali
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Theriogenology Department, Faculty of Veterinary Medicine, Mansoura University, 35516, Egypt
| | - Kirsten Scoggin
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Yatta Linhares Boakari
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL, 36849, USA
| | - Pouya Dini
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Faculty of Veterinary Medicine, Ghent University, Merelbeke, B-9820, Belgium
| | - Shavahn Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Carleigh Fedorka
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Alejandro Esteller-Vico
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, 37996, USA
| | - Barry Ball
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
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23
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Motomura K, Romero R, Tarca AL, Galaz J, Bhatti G, Done B, Arenas-Hernandez M, Levenson D, Slutsky R, Hsu CD, Gomez-Lopez N. Pregnancy-specific transcriptional changes upon endotoxin exposure in mice. J Perinat Med 2020; 48:700-722. [PMID: 32866128 PMCID: PMC8258803 DOI: 10.1515/jpm-2020-0159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 05/27/2020] [Indexed: 12/26/2022]
Abstract
Objectives Pregnant women are more susceptible to certain infections; however, this increased susceptibility is not fully understood. Herein, systems biology approaches were utilized to elucidate how pregnancy modulates tissue-specific host responses to a bacterial product, endotoxin. Methods Pregnant and non-pregnant mice were injected with endotoxin or saline on 16.5 days post coitum (n=8-11 per group). The uterus, cervix, liver, adrenal gland, kidney, lung, and brain were collected 12 h after injection and transcriptomes were measured using microarrays. Heatmaps and principal component analysis were used for visualization. Differentially expressed genes between groups were assessed using linear models that included interaction terms to determine whether the effect of infection differed with pregnancy status. Pathway analysis was conducted to interpret gene expression changes. Results We report herein a multi-organ atlas of the transcript perturbations in pregnant and non-pregnant mice in response to endotoxin. Pregnancy strongly modified the host responses to endotoxin in the uterus, cervix, and liver. In contrast, pregnancy had a milder effect on the host response to endotoxin in the adrenal gland, lung, and kidney. However, pregnancy did not drastically affect the host response to endotoxin in the brain. Conclusions Pregnancy imprints organ-specific host immune responses upon endotoxin exposure. These findings provide insight into the host-response against microbes during pregnancy.
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Affiliation(s)
- Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan 48109, USA,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan 48824, USA,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan 48201, USA,Detroit Medical Center, Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, 33199, USA,Address correspondence to: Nardhy Gomez-Lopez, MSc, PhD, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Perinatology Research Branch, NICHD/NIH/DHHS, 275 E. Hancock, Detroit, Michigan 48201, USA, Tel (313) 577-8904, ; . Roberto Romero, MD, D. Med. Sci., Perinatology Research Branch, NICHD/NIH/DHHS, Wayne State University/Hutzel Women’s Hospital 3990 John R, Box 4, Detroit, Michigan 48201, USA, Telephone: (313) 993-2700, Fax: (313) 993-2694,
| | - Adi L. Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA,Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan 48201, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Gaurav Bhatti
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Bogdan Done
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Marcia Arenas-Hernandez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Dustyn Levenson
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Rebecca Slutsky
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA
| | - Chaur-Dong Hsu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA,Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, 20892 and Detroit, Michigan 48201, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA,Address correspondence to: Nardhy Gomez-Lopez, MSc, PhD, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Perinatology Research Branch, NICHD/NIH/DHHS, 275 E. Hancock, Detroit, Michigan 48201, USA, Tel (313) 577-8904, ; . Roberto Romero, MD, D. Med. Sci., Perinatology Research Branch, NICHD/NIH/DHHS, Wayne State University/Hutzel Women’s Hospital 3990 John R, Box 4, Detroit, Michigan 48201, USA, Telephone: (313) 993-2700, Fax: (313) 993-2694,
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24
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Shchuka VM, Abatti LE, Hou H, Khader N, Dorogin A, Wilson MD, Shynlova O, Mitchell JA. The pregnant myometrium is epigenetically activated at contractility-driving gene loci prior to the onset of labor in mice. PLoS Biol 2020; 18:e3000710. [PMID: 32667910 PMCID: PMC7384763 DOI: 10.1371/journal.pbio.3000710] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 07/27/2020] [Accepted: 06/19/2020] [Indexed: 12/12/2022] Open
Abstract
During gestation, uterine smooth muscle cells transition from a state of quiescence to one of contractility, but the molecular mechanisms underlying this transition at a genomic level are not well-known. To better understand these events, we evaluated the epigenetic landscape of the mouse myometrium during the pregnant, laboring, and postpartum stages. We generated gestational time point–specific enrichment profiles for histone H3 acetylation on lysine residue 27 (H3K27ac), histone H3 trimethylation of lysine residue 4 (H3K4me3), and RNA polymerase II (RNAPII) occupancy by chromatin immunoprecipitation with massively parallel sequencing (ChIP-seq), as well as gene expression profiles by total RNA-sequencing (RNA-seq). Our findings reveal that 533 genes, including known contractility-driving genes (Gap junction alpha 1 [Gja1], FBJ osteosarcoma oncogene [Fos], Fos-like antigen 2 [Fosl2], Oxytocin receptor [Oxtr], and Prostaglandin G/H synthase 2 (Ptgs2), for example), are up-regulated at day 19 during active labor because of an increase in transcription at gene bodies. Labor-associated promoters and putative intergenic enhancers, however, are epigenetically activated as early as day 15, by which point the majority of genome-wide H3K27ac or H3K4me3 peaks present in term laboring tissue is already established. Despite this early exhibited histone signature, increased noncoding enhancer RNA (eRNA) production at putative intergenic enhancers and recruitment of RNAPII to the gene bodies of labor-associated loci were detected only during labor. Our findings indicate that epigenetic activation of the myometrial genome precedes active labor by at least 4 days in the mouse model, suggesting that the myometrium is poised for rapid activation of contraction-associated genes in order to exit the state of quiescence. A study of the epigenomic and transcriptomic basis of pregnancy and labor onset in a mouse model identifies genes that are epigenetically poised for activation four days before labour onset, and implicates AP-1 transcription factors in the up-regulation of genes during labor.
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Affiliation(s)
- Virlana M. Shchuka
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- * E-mail: (JAM); (OS); (VMS)
| | - Luis E. Abatti
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Huayun Hou
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, Ontario, Canada
| | - Nawrah Khader
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Michael D. Wilson
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, Ontario, Canada
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Department of Obstetrics & Gynaecology, University of Toronto, Ontario, Canada
- * E-mail: (JAM); (OS); (VMS)
| | - Jennifer A. Mitchell
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- * E-mail: (JAM); (OS); (VMS)
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25
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Chen HY, Gao LT, Yuan JQ, Zhang YJ, Liu P, Wang G, Ni X, Liu WN, Gao L. Decrease in SHP-1 enhances myometrium remodeling via FAK activation leading to labor. Am J Physiol Endocrinol Metab 2020; 318:E930-E942. [PMID: 32343611 DOI: 10.1152/ajpendo.00068.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Preterm birth is one of the most common complications during human pregnancy and is associated with a dramatic switch within the uterus from quiescence to contractility. However, the mechanisms underlying uterine remodeling are largely unknown. Protein kinases and phosphatases play critical roles in regulating the phosphorylation of proteins involved in the smooth muscle cell functions. In the present study, we found that Src-homology phosphatase type-1 (SHP-1, PTPN6) was significantly decreased in human myometrium in labor compared with that not in labor. Timed-pregnant mice injected intraperitoneally with the specific SHP-1 inhibitor protein tyrosine phosphatase inhibitor I (PTPI-1) manifested significantly preterm labor, with enriched plasmalemmal dense plaques between myometrial cells and increased phosphorylation at Tyr397 and Tyr576/577 sites of focal adhesion kinase (FAK) in myometrial cells, which remained to the time of labor, whereas the phosphorylation levels of ERK1/2 and phosphatidylinositol 3 kinase (PI3K) showed a rapid increase upon PTPI-1 injection but fell back to normal at the time of labor. The Tyr576/577 in FAK played an important role in the interaction between FAK and SHP-1. Knockdown of SHP-1 dramatically increased the spontaneous contraction of human uterine smooth muscle cells (HUSMCs), which was reversed by coinfection of a FAK-knockdown lentivirus. PGF2α downregulated SHP-1 via PLCβ-PKC-NF-κB or PI3K-NF-κB pathways, suggesting the regenerative downregulation of SHP-1 enhances the uterine remodeling and plasticity by activating FAK and subsequent focal adhesion pathway, which eventually facilitates myometrium contraction and leads to labor. The study sheds new light on understanding of mechanisms that underlie the initiation of labor, and interventions for modulation of SHP-1 may provide a potential strategy for preventing preterm birth.
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Affiliation(s)
- Huai-Yan Chen
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Ling-Tong Gao
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Jian-Qiang Yuan
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yu-Ji Zhang
- Department of Physiology, Second Military Medical University, Shanghai, China
- Department of Cardiovascular Surgery, Shenyang Northern Hospital, Shenyang, China
| | - Pei Liu
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Gang Wang
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Xin Ni
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Wei-Na Liu
- Department of Physiology, Second Military Medical University, Shanghai, China
- Department of Obstetrics and Gynecology, Chinese Eastern Theatre Naval Hospital, Ningbo, China
| | - Lu Gao
- Department of Physiology, Second Military Medical University, Shanghai, China
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
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26
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Leimert KB, Messer A, Gray T, Fang X, Chemtob S, Olson DM. Maternal and fetal intrauterine tissue crosstalk promotes proinflammatory amplification and uterine transition†. Biol Reprod 2020; 100:783-797. [PMID: 30379983 DOI: 10.1093/biolre/ioy232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/06/2018] [Accepted: 10/29/2018] [Indexed: 12/24/2022] Open
Abstract
Birth is a complex biological event requiring genetic, cellular, and physiological changes to the uterus, resulting in a uterus activated for completing the physiological processes of labor. We define the change from the state of pregnancy to the state of parturition as uterine transitioning, which requires the actions of inflammatory mediators and localized paracrine interactions between intrauterine tissues. Few studies have examined the in vitro interactions between fetal and maternal gestational tissues within this proinflammatory environment. Thus, we designed a co-culture model to address this gap, incorporating primary term human myometrium smooth muscle cells (HMSMCs) with human fetal membrane (hFM) explants to study interactions between the tissues. We hypothesized that crosstalk between tissues at term promotes proinflammatory expression and uterine transitioning for parturition. Outputs of 40 cytokines and chemokines encompassing a variety of proinflammatory roles were measured; all but one increased significantly with co-culture. Eighteen of the 39 cytokines increased to a higher abundance than the sum of the effect of each tissue cultured separately. In addition, COX2 and IL6 but not FP and OXTR mRNA abundance significantly increased in both HMSMCs and hFM in response to co-culture. These data suggest that synergistic proinflammatory upregulation within intrauterine tissues is involved with uterine transitioning.
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Affiliation(s)
- Kelycia B Leimert
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
| | - Angela Messer
- Departments of Obstetrics & Gynecology, and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Theora Gray
- Departments of Obstetrics & Gynecology, and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Xin Fang
- Departments of Obstetrics & Gynecology, and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Sylvain Chemtob
- Department of Pediatrics, Ophthalmology, and Pharmacology, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
| | - David M Olson
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Departments of Obstetrics & Gynecology, and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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27
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El-Sheikh Ali H, Boakari YL, Loux SC, Dini P, Scoggin KE, Esteller-Vico A, Kalbfleisch T, Ball BA. Transcriptomic analysis reveals the key regulators and molecular mechanisms underlying myometrial activation during equine placentitis†. Biol Reprod 2020; 102:1306-1325. [PMID: 32065222 DOI: 10.1093/biolre/ioaa020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/30/2020] [Accepted: 02/14/2020] [Indexed: 01/06/2023] Open
Abstract
The key event in placentitis-induced preterm labor is myometrial activation with the subsequent initiation of labor. However, the molecular mechanisms underlying myometrial activation are not fully understood in the mares. Therefore, the equine myometrial transcriptome was characterized during placentitis (290.0 ± 1.52 days of GA, n = 5) and the prepartum period (330 days of GA, n = 3) in comparison to normal pregnant mares (289.8 ± 2.18 days of GA, n = 4). Transcriptome analysis identified 596 and 290 DEGs in the myometrium during placentitis and the prepartum period, respectively, with 138 DEGs in common. The placentitis DEGs included eight genes (MMP1, MMP8, S100A9, S100A8, PI3, APOBEC3Z1B, RETN, and CXCL2) that are exclusively expressed in the inflamed myometrium. Pathway analysis elucidated that inflammatory signaling, Toll-like receptor signaling, and apoptosis pathways dominate myometrial activation during placentitis. The prepartum myometrium was associated with overexpression of inflammatory signaling, oxidative stress, and 5-hydroxytryptamine degradation. Gene ontology enrichment analysis identified several chemoattractant factors in the myometrium during placentitis and prepartum period, including CCL2, CXCL1, CXCL3, and CXCL6 in common. Upstream regulator analysis revealed 19 potential upstream regulators in placentitis dataset including transcription regulators (E2F1, FOXM1, HIF1A, JUNB, NFKB1A, and STAT1), transmembrane receptors (FAS, ICAM1, SELP, TLR2, and TYROBP), growth factors (HGF and TGFB3), enzymes (PTGS2 and PRKCP), and others (S100A8, S100A9, CD44, and C5AR1). Additionally, three upstream regulators (STAT3, EGR1, and F2R) were identified in the prepartum dataset. These findings revealed the key regulators and pathways underlying myometrial activation during placentitis, which aid in understanding the disease and facilitate the development of efficacious therapies.
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Affiliation(s)
- H El-Sheikh Ali
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA.,Theriogenology Department, Faculty of Veterinary Medicine, University of Mansoura, Dakahlia, Mansoura, Egypt
| | - Y L Boakari
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - S C Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - P Dini
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA.,Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - K E Scoggin
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - A Esteller-Vico
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA.,Department of Biomedical and Diagnostic Sciences, University of Tennessee, Tennessee, Knoxville, USA
| | - T Kalbfleisch
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - B A Ball
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
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28
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Suff N, Karda R, Diaz JA, Ng J, Baruteau J, Perocheau D, Taylor PW, Alber D, Buckley SMK, Bajaj-Elliott M, Waddington SN, Peebles D. Cervical Gene Delivery of the Antimicrobial Peptide, Human β-Defensin (HBD)-3, in a Mouse Model of Ascending Infection-Related Preterm Birth. Front Immunol 2020; 11:106. [PMID: 32117260 PMCID: PMC7026235 DOI: 10.3389/fimmu.2020.00106] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/15/2020] [Indexed: 11/13/2022] Open
Abstract
Approximately 40% of preterm births are preceded by microbial invasion of the intrauterine space; ascent from the vagina being the most common pathway. Within the cervical canal, antimicrobial peptides and proteins (AMPs) are important components of the cervical barrier which help to prevent ascending vaginal infection. We investigated whether expression of the AMP, human β-defensin-3 (HBD3), in the cervical mucosa of pregnant mice could prevent bacterial ascent from the vagina into the uterine cavity. An adeno-associated virus vector containing both the HBD3 gene and GFP transgene (AAV8 HBD3.GFP) or control AAV8 GFP, was administered intravaginally into E13.5 pregnant mice. Ascending infection was induced at E16.5 using bioluminescent Escherichia coli (E. coli K1 A192PP-lux2). Bioluminescence imaging showed bacterial ascent into the uterine cavity, inflammatory events that led to premature delivery and a reduction in pups born alive, compared with uninfected controls. Interestingly, a significant reduction in uterine bioluminescence in the AAV8 HBD3.GFP-treated mice was observed 24 h post-E. coli infection, compared to AAV8 GFP treated mice, signifying reduced bacterial ascent in AAV8 HBD3.GFP-treated mice. Furthermore, there was a significant increase in the number of living pups in AAV HBD3.GFP-treated mice. We propose that HBD3 may be a potential candidate for augmenting cervical innate immunity to prevent ascending infection-related preterm birth and its associated neonatal consequences.
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Affiliation(s)
- Natalie Suff
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
- Preterm Birth Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
- Preterm Birth Group, Department of Women and Children's Health, King's College London, St Thomas' Hospital, London, United Kingdom
| | - Rajvinder Karda
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
| | - Juan Antinao Diaz
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
| | - Joanne Ng
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
| | - Julien Baruteau
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
- Metabolic Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Dany Perocheau
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
| | - Peter W. Taylor
- University College London School of Pharmacy, London, United Kingdom
| | - Dagmar Alber
- Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Suzanne M. K. Buckley
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
| | - Mona Bajaj-Elliott
- Preterm Birth Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
- Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Simon N. Waddington
- Gene Transfer Technology Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
- SA/MRC Antiviral Gene Therapy Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Donald Peebles
- Preterm Birth Group, Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London, London, United Kingdom
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29
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Comparison of the myometrial transcriptome from singleton and twin pregnancies by RNA-Seq. PLoS One 2020; 15:e0227882. [PMID: 31951633 PMCID: PMC6968856 DOI: 10.1371/journal.pone.0227882] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/01/2020] [Indexed: 01/08/2023] Open
Abstract
Preterm birth is recognized as the primary cause of infant mortality worldwide. Twin pregnancies are significantly more at risk of preterm birth than singleton pregnancies. A greater understanding of why this is and better modes of treatment and prevention are needed. Key to this is determining the differing pathophysiological mechanisms of preterm birth in twins, including the role of the myometrium and premature uterine contraction. We performed RNA sequencing (RNA-Seq) of human myometrium from singleton and twin pregnancies at term (> 37+0 weeks) and preterm (< 37+0 weeks), collected during pre-labour Caesarean Section. RNA-Seq libraries were prepared from polyA-selected RNA and sequenced on the Illumina HiSeq 4000 platform. Differentially expressed genes (DEGs), GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway enrichment were conducted using R software. Significance was determined with a false discovery rate-adjusted P value of <0.05. Only 3 DEGs were identified between gestational age-matched singleton and twin myometrium and only 1 DEG identified between singleton term and twin preterm tissues. Comparison of singleton preterm myometrium with twin term myometrium however, revealed 75 down-regulated and 24 up-regulated genes in twin myometrium. This included genes associated with inflammation and immune response, T cell maturation and differentiation and steroid biosynthesis. GO and KEGG enrichment analyses for biologically relevant processes and functions also revealed several terms related to inflammation and immune response, as well as cytokine-cytokine receptor interaction and chemokine receptor signalling. Data indicate that little or no differences exist in the transcriptome of singleton and twin myometrium when matched for gestational age. The significant up- and down-regulation of genes identified between preterm singleton and twin myometrium at term may point to transcriptome changes associated with the chronic levels of uterine stretch in twin pregnancy or genes associated with the myometrium transitioning to labour onset.
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30
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The Regulation of Uterine Function During Parturition: an Update and Recent Advances. Reprod Sci 2020; 27:3-28. [DOI: 10.1007/s43032-019-00001-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/19/2019] [Indexed: 12/13/2022]
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31
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Brabin B, Tinto H, Roberts SA. Testing an infection model to explain excess risk of preterm birth with long-term iron supplementation in a malaria endemic area. Malar J 2019; 18:374. [PMID: 31771607 PMCID: PMC6880560 DOI: 10.1186/s12936-019-3013-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022] Open
Abstract
Background In view of recent evidence from a randomized trial in Burkina Faso that periconceptional iron supplementation substantially increases risk of spontaneous preterm birth (< 37 weeks) in first pregnancies (adjusted relative risk = 2.22; 95% CI 1.39–3.61), explanation is required to understand potential mechanisms, including progesterone mediated responses, linking long-term iron supplementation, malaria and gestational age. Methods The analysis developed a model based on a dual hit inflammatory mechanism arising from simultaneous malaria and gut infections, supported in part by published trial results. This model is developed to understand mechanisms linking iron supplementation, malaria and gestational age. Background literature substantiates synergistic inflammatory effects of these infections where trial data is unavailable. A path modelling exercise assessed direct and indirect paths influencing preterm birth and gestation length. Results A dual hit hypothesis incorporates two main pathways for pro-inflammatory mechanisms, which in this model, interact to increase hepcidin expression. Trial data showed preterm birth was positively associated with C-reactive protein (P = 0.0038) an inflammatory biomarker. The malaria pathway upregulates C-reactive protein and serum hepcidin, thereby reducing iron absorption. The enteric pathway results from unabsorbed gut iron, which induces microbiome changes and pathogenic gut infections, initiating pro-inflammatory events with lipopolysaccharide expression. Data from the trial suggest that raised hepcidin concentration is a mediating catalyst, being inversely associated with shorter gestational age at delivery (P = 0.002) and positively with preterm incidence (P = 0.007). A segmented regression model identified a change-point consisting of two segments before and after a sharp rise in hepcidin concentration. This showed a post change hepcidin elevation in women with increasing C-reactive protein values in late gestation (post-change slope 0.55. 95% CI 0.39–0.92, P < 0.001). Path modelling confirmed seasonal malaria effects on preterm birth, with mediation through C-reactive protein and (non-linear) hepcidin induction. Conclusions Following long-term iron supplementation, dual inflammatory pathways that mediate hepcidin expression and culminate in progesterone withdrawal may account for the reduction in gestational age observed in first pregnancies in this area of high malaria exposure. If correct, this model strongly suggests that in such areas, effective infection control is required prior to iron supplementation to avoid increasing preterm births. Trial registration NCT01210040. Registered with Clinicaltrials.gov on 27th September 2010
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Affiliation(s)
- Bernard Brabin
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, L35QA, UK. .,Institute of Infection and Global Health, University of Liverpool, Liverpool, UK. .,Global Child Health Group, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
| | - Halidou Tinto
- Clinical Research Unit of Nanoro (URCN/IRSS), Nanoro, Burkina Faso
| | - Stephen A Roberts
- Centre for Biostatistics, Division of Population Health, Health Services Research and Primary Care, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre (MAHSC), Manchester, UK
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32
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Boeckel SRV, Hrabalkova L, Baker TL, MacPherson H, Frew L, Boyle AK, McHugh BJ, Wilson K, Norman JE, Dorin JR, Davidson DJ, Stock SJ. Cathelicidins and the Onset of Labour. Sci Rep 2019; 9:7356. [PMID: 31089176 PMCID: PMC6517412 DOI: 10.1038/s41598-019-43766-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 05/01/2019] [Indexed: 01/07/2023] Open
Abstract
Preterm birth, defined as delivery before 37 weeks of gestation, is the leading cause of neonatal mortality and morbidity. Infection and inflammation are frequent antecedents of spontaneous preterm birth. Cathelicidin, an antimicrobial host defence peptide, is induced by infection and inflammation and although expressed in the reproductive tract and fetal tissues, its role in the pathogenesis of spontaneous preterm birth is unknown. Here we demonstrate that cathelicidin expression is increased at RNA and protein level in the mouse uterus in a model of inflammation-induced labour, where ultrasound guided intrauterine injection of lipopolysaccharide (LPS) at E17 stimulates preterm delivery within 24 hours. Cathelicidin-deficient (Camp−/−) mice are less susceptible to preterm delivery than wild type mice following intrauterine injection of 1 μg of LPS, and this is accompanied by a decrease in circulating IL-6, an inflammatory mediator implicated in the onset of labour. We also show that the proportion of cathelicidin expressing cells in the myometrium is higher in samples obtained from women in labour at term than pre-labour. Together, these data suggest that cathelicidin has roles in mediating pro-inflammatory responses in a murine model of inflammation-induced labour, and in human term labour.
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Affiliation(s)
- Sara R van Boeckel
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Lenka Hrabalkova
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Tina L Baker
- University of Edinburgh Centre for Inflammation Research, QMRI, Edinburgh, United Kingdom
| | - Heather MacPherson
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Lorraine Frew
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Ashley K Boyle
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Brian J McHugh
- University of Edinburgh Centre for Inflammation Research, QMRI, Edinburgh, United Kingdom
| | - Kirsten Wilson
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Jane E Norman
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom
| | - Julia R Dorin
- University of Edinburgh Centre for Inflammation Research, QMRI, Edinburgh, United Kingdom
| | - Donald J Davidson
- University of Edinburgh Centre for Inflammation Research, QMRI, Edinburgh, United Kingdom
| | - Sarah J Stock
- Tommy's Centre for Maternal and Fetal Health at the MRC Centre for Reproductive Health, University of Edinburgh, QMRI, Edinburgh, United Kingdom.
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33
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Pereyra S, Sosa C, Bertoni B, Sapiro R. Transcriptomic analysis of fetal membranes reveals pathways involved in preterm birth. BMC Med Genomics 2019; 12:53. [PMID: 30935390 PMCID: PMC6444860 DOI: 10.1186/s12920-019-0498-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 03/10/2019] [Indexed: 12/21/2022] Open
Abstract
Background Preterm birth (PTB), defined as infant delivery before 37 weeks of completed gestation, results from the interaction of both genetic and environmental components and constitutes a complex multifactorial syndrome. Transcriptome analysis of PTB has proven challenging because of the multiple causes of PTB and the numerous maternal and fetal gestational tissues that must interact to facilitate parturition. The transcriptome of the chorioamnion membranes at the site of rupture in PTB and term fetuses may reflect the molecular pathways of preterm labor. Methods In this work, chorioamnion membranes from severe preterm and term fetuses were analyzed using RNA sequencing. Functional annotations and pathway analysis of differentially expressed genes were performed with the GAGE and GOSeq packages. A subset of differentially expressed genes in PTB was validated in a larger cohort using qRT-PCR and by comparing our results with genes and pathways previously reported in the literature. Results A total of 270 genes were differentially expressed (DE): 252 were upregulated and 18 were down-regulated in severe preterm births relative to term births. Inflammatory and immunological pathways were upregulated in PTB. Both types of pathways were previously suggested to lead to PTB. Pathways that were not previously reported in PTB, such as the hemopoietic pathway, appeared upregulated in preterm membranes. A group of 18 downregulated genes discriminated between term and severe preterm cases. These genes potentially characterize a severe preterm transcriptome pattern and therefore are candidate genes for understanding the syndrome. Some of the downregulated genes are involved in the nervous system, morphogenesis (WNT1, DLX5, PAPPA2) and ion channel complexes (KCNJ16, KCNB1), making them good candidates as biomarkers of PTB. Conclusions The identification of this DE gene pattern will help with the development of a multi-gene disease classifier. These markers were generated in an admixed South American population in which PTB has a high incidence. Since the genetic background may differentially impact different populations, it is necessary to include populations such as those from South America and Africa, which are usually excluded from high-throughput approaches. These classifiers should be compared to those in other populations to obtain a global landscape of PTB. Electronic supplementary material The online version of this article (10.1186/s12920-019-0498-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Silvana Pereyra
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay
| | - Claudio Sosa
- Clínica Ginecotologica "C", Centro Hospitalario Pereira Rossell, Facultad de Medicina, Universidad de la República, Bvar. General Artigas 1590, C:P.11600, Montevideo, Uruguay
| | - Bernardo Bertoni
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay
| | - Rossana Sapiro
- Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay.
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34
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Stanfield Z, Lai PF, Lei K, Johnson MR, Blanks AM, Romero R, Chance MR, Mesiano S, Koyutürk M. Myometrial Transcriptional Signatures of Human Parturition. Front Genet 2019; 10:185. [PMID: 30988671 PMCID: PMC6452569 DOI: 10.3389/fgene.2019.00185] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/19/2019] [Indexed: 01/01/2023] Open
Abstract
The process of parturition involves the transformation of the quiescent myometrium (uterine smooth muscle) to the highly contractile laboring state. This is thought to be driven by changes in gene expression in myometrial cells. Despite the existence of multiple myometrial gene expression studies, the transcriptional programs that initiate labor are not known. Here, we integrated three transcriptome datasets, one novel (NCBI Gene Expression Ominibus: GSE80172) and two existing, to characterize the gene expression changes in myometrium associated with the onset of labor at term. Computational analyses including classification, singular value decomposition, pathway enrichment, and network inference were applied to individual and combined datasets. Outcomes across studies were integrated with multiple protein and pathway databases to build a myometrial parturition signaling network. A high-confidence (significant across all studies) set of 126 labor genes were identified and machine learning models exhibited high reproducibility between studies. Labor signatures included both known (interleukins, cytokines) and unknown (apoptosis, MYC, cell proliferation/differentiation) pathways while cyclic AMP signaling and muscle relaxation were associated with non-labor. These signatures accurately classified and characterized the stages of labor. The data-derived parturition signaling networks provide new genes/signaling interactions to understand phenotype-specific processes and aid in future studies of parturition.
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Affiliation(s)
- Zachary Stanfield
- Systems Biology and Bioinformatics Program, Case Western Reserve University, Cleveland, OH, United States
- Department of Nutrition, Case Western Reserve University, Cleveland, OH, United States
| | - Pei F. Lai
- Imperial College Parturition Research Group, Department of Obstetrics and Gynecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Kaiyu Lei
- BGI Clinical Laboratories (Shenzhen) Co., Ltd., Shenzhen, China
| | - Mark R. Johnson
- Imperial College Parturition Research Group, Department of Obstetrics and Gynecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
- Imperial College Parturition Research Group, Institute of Reproductive and Developmental Biology, London, United Kingdom
| | - Andrew M. Blanks
- Cell and Developmental Biology, Clinical Sciences Research Laboratory, Division of Biomedical Sciences, Warwick Medical School, Coventry, United Kingdom
| | - Roberto Romero
- Perinatology Research Branch, NICHD, NIH, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Mark R. Chance
- Department of Nutrition, Case Western Reserve University, Cleveland, OH, United States
- Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH, United States
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, United States
| | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, OH, United States
- Department of Obstetrics and Gynecology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, United States
| | - Mehmet Koyutürk
- Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH, United States
- Department of Electrical Engineering and Computer Science, Case School of Engineering, Case Western Reserve University, Cleveland, OH, United States
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35
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Shah NM, Lai PF, Imami N, Johnson MR. Progesterone-Related Immune Modulation of Pregnancy and Labor. Front Endocrinol (Lausanne) 2019; 10:198. [PMID: 30984115 PMCID: PMC6449726 DOI: 10.3389/fendo.2019.00198] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/11/2019] [Indexed: 12/17/2022] Open
Abstract
Pregnancy involves a complex interplay between maternal neuroendocrine and immunological systems in order to establish and sustain a growing fetus. It is thought that the uterus at pregnancy transitions from quiescent to laboring state in response to interactions between maternal and fetal systems at least partly via altered neuroendocrine signaling. Progesterone (P4) is a vital hormone in maternal reproductive tissues and immune cells during pregnancy. As such, P4 is widely used in clinical interventions to improve the chance of embryo implantation, as well as reduce the risk of miscarriage and premature labor. Here we review research to date that focus on the pathways through which P4 mediates its actions on both the maternal reproductive and immune system. We will dissect the role of P4 as a modulator of inflammation, both systemic and intrinsic to the uterus, during human pregnancy and labor.
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Affiliation(s)
- Nishel M. Shah
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, Imperial College London, London, United Kingdom
| | - Pei F. Lai
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, Imperial College London, London, United Kingdom
| | - Nesrina Imami
- Department of Medicine, Chelsea and Westminster Hospital, Imperial College London, London, United Kingdom
| | - Mark R. Johnson
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, Imperial College London, London, United Kingdom
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36
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Arenas-Hernandez M, Romero R, Xu Y, Panaitescu B, Garcia-Flores V, Miller D, Ahn H, Done B, Hassan SS, Hsu CD, Tarca AL, Sanchez-Torres C, Gomez-Lopez N. Effector and Activated T Cells Induce Preterm Labor and Birth That Is Prevented by Treatment with Progesterone. THE JOURNAL OF IMMUNOLOGY 2019; 202:2585-2608. [PMID: 30918041 DOI: 10.4049/jimmunol.1801350] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 02/26/2019] [Indexed: 12/21/2022]
Abstract
Preterm labor commonly precedes preterm birth, the leading cause of perinatal morbidity and mortality worldwide. Most research has focused on establishing a causal link between innate immune activation and pathological inflammation leading to preterm labor and birth. However, the role of maternal effector/activated T cells in the pathogenesis of preterm labor/birth is poorly understood. In this study, we first demonstrated that effector memory and activated maternal T cells expressing granzyme B and perforin are enriched at the maternal-fetal interface (decidua) of women with spontaneous preterm labor. Next, using a murine model, we reported that prior to inducing preterm birth, in vivo T cell activation caused maternal hypothermia, bradycardia, systemic inflammation, cervical dilation, intra-amniotic inflammation, and fetal growth restriction, all of which are clinical signs associated with preterm labor. In vivo T cell activation also induced B cell cytokine responses, a proinflammatory macrophage polarization, and other inflammatory responses at the maternal-fetal interface and myometrium in the absence of an increased influx of neutrophils. Finally, we showed that treatment with progesterone can serve as a strategy to prevent preterm labor/birth and adverse neonatal outcomes by attenuating the proinflammatory responses at the maternal-fetal interface and cervix induced by T cell activation. Collectively, these findings provide mechanistic evidence showing that effector and activated T cells cause pathological inflammation at the maternal-fetal interface, in the mother, and in the fetus, inducing preterm labor and birth and adverse neonatal outcomes. Such adverse effects can be prevented by treatment with progesterone, a clinically approved strategy.
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Affiliation(s)
- Marcia Arenas-Hernandez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City 07360, Mexico
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824.,Center for Molecular Obstetrics and Genetics, Wayne State University, Detroit, MI 48201
| | - Yi Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Bogdan Panaitescu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Valeria Garcia-Flores
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Derek Miller
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Hyunyoung Ahn
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Bogdan Done
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Sonia S Hassan
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Chaur-Dong Hsu
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201
| | - Adi L Tarca
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI 48202; and
| | - Carmen Sanchez-Torres
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City 07360, Mexico
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Detroit, MI 48201; .,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI 48201
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Yi X, Zhang J, Liu H, Yi T, Ou Y, Liu M, Zhu L, Chen H, Zhang J. Suppressed Immune-Related Profile Rescues Abortion-Prone Fetuses: A Novel Insight Into the CBA/J × DBA/2J Mouse Model. Reprod Sci 2019; 26:1485-1492. [PMID: 30791861 DOI: 10.1177/1933719119828042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The adverse clinical result and poor treatment outcome in recurrent spontaneous abortion (RSA) make it necessary to understand the pathogenic mechanism. The mating combination CBA/J × DBA/2 has been widely used as an abortion-prone model compared to DBA/2-mated CBA/J mice. Here, we used RNA-seq to get a comprehensive catalogue of genes differentially expressed between survival placenta in abortion-prone model and control. Five hundred twenty-four differentially expressed genes were obtained followed by clustering analysis, Gene Ontology analysis, and pathway analysis. We paid more attention to immune-related genes namely "immune response" and "immune system process" including 33 downregulated genes and 28 upregulated genes. Twenty-one genes contribute to suppressing immune system and 7 are against it. Six genes were validated by reverse transcription-polymerase chain reaction, namely Ccr1l1, Tlr4, Tgf-β1, Tyro3, Gzmb, and Il-1β. Furthermore, Tlr4, Tgf-β1, and Il-1β were analyzed by Western blot. Such immune profile gives us a better understanding of the complicated immune processing in RSA and immunosuppression can rescue pregnancy loss.
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Affiliation(s)
- Xiaochun Yi
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jie Zhang
- Department of Rehabilitation Medicine, Guangdong Women and Children Hospital, Guangzhou, People's Republic of China
| | - Huixiang Liu
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Tianxia Yi
- Hunan University of Chinese Medicine, Changsha, People's Republic of China
| | - Yuhua Ou
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Meilan Liu
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Liqiong Zhu
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Hui Chen
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jianping Zhang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
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38
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Development of a mucoinert progesterone nanosuspension for safer and more effective prevention of preterm birth. J Control Release 2019; 295:74-86. [PMID: 30597245 PMCID: PMC6398330 DOI: 10.1016/j.jconrel.2018.12.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/19/2018] [Accepted: 12/27/2018] [Indexed: 02/03/2023]
Abstract
Preterm birth (PTB) is a significant global problem, but few therapeutic options exist. Vaginal progesterone supplementation has been demonstrated to reduce PTB rates in women with a sonographic short cervix, yet there has been little investigation into the most effective dose or delivery form. Further, vaginal products like progesterone gel often contain excipients that cause local toxicity, irritation, and leakage. Here, we describe the development and characterization of a mucoinert vaginal progesterone nanosuspension formulation for improved drug delivery to the female reproductive tract. We compare the pharmacokinetics and pharmacodynamics to the clinical comparator progesterone gel in pregnant mice and demonstrate increased vaginal absorption and biodistribution via the uterine first-pass effect. Importantly, the unique plasma progesterone double peak observed in humans, reflecting recirculation from the uterus, was also observed in pregnant mice with vaginal dosing. We adapted a mouse model of progesterone withdrawal that was previously believed to be incompatible with testing the efficacy of exogenous progestins, and are first to demonstrate efficacy in preventing preterm birth with vaginal progesterone in this model. Further, improved vaginal progesterone delivery by the nanosuspension led to increased efficacy in PTB prevention. Additionally, we identified histological and transcriptional evidence of cervical and uterine toxicity with a single vaginal administration of the clinical gel that are absent after dosing with the mucoinert nanosuspension formulation. We demonstrate that a progesterone formulation that is designed for improved vaginal progesterone absorption and vaginal biocompatibility could be more effective for PTB prevention.
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39
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Yi X, Liu H, Ou Y, Liu M, Zhu L, Chen H, Zhang J. Dominant inflammatory profile of the placenta in a preterm labor mouse model. J Matern Fetal Neonatal Med 2019; 33:1927-1933. [PMID: 30328754 DOI: 10.1080/14767058.2018.1533949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Objective: Despite a growing association between inflammation and preterm labor, the underlying mechanisms explaining the development of preterm labor after infection are still poorly understood. Here, we use RNA-sequencing to characterize the transcriptome changes of placenta tissue in a preterm labor mouse model.Materials and methods: On day 15.5 of gestation, BALB/c mice received intrauterine injection of LPS to mimic preterm labor. A comprehensive catalog of genes was obtained using RNA-sequences and followed by bioinformatics analysis. The NOD-like receptor signaling pathway (Nod2, Cxcl1, Cxcl2, and IL-1β) and two downregulated genes (Ctsg and Snca) were selected for validating the results using qPCR analysis.Results: We identified 155 differentially expressed genes (DEGs), 84 biological processes and 45 pathways in the placenta using RNA-seq. Fifty-four biological processes could be categorized as immune-related processes and 33 pathways were mainly related to immune disease and infections. All genes were consistent between the RNA-seq and qPCR analyses.Conclusions: The dominant role for inflammatory biological processes and pathways in placenta can lead to preterm labor.
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Affiliation(s)
- Xiaochun Yi
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huixiang Liu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuhua Ou
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Meilan Liu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liqiong Zhu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Chen
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jianping Zhang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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40
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Lim R, Barker G, Lappas M. PARK7 regulates inflammation-induced pro-labour mediators in myometrial and amnion cells. Reproduction 2018; 155:207-218. [PMID: 29358306 DOI: 10.1530/rep-17-0604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/13/2017] [Accepted: 12/04/2017] [Indexed: 01/18/2023]
Abstract
Preterm birth is a prevalent cause of neonatal deaths worldwide. Inflammation has been implicated in spontaneous preterm birth involved in the processes of uterine contractility and membrane rupture. Parkinson protein 7 (PARK7) has been found to play an inflammatory role in non-gestational tissues. The aims of this study were to determine the expression of PARK7 in myometrium and fetal membranes with respect to term labour onset and to elucidate the effect of PARK7 silencing in primary myometrium and amnion cells on pro-inflammatory and pro-labour mediators. PARK7 mRNA expression was higher in term myometrium and fetal membranes from women in labour compared to non-labouring samples and in amnion from preterm deliveries with chorioamnionitis. In human primary myometrial cells transfected with PARK7 siRNA (siPARK7), there was a significant decrease in IL1B, TNF, fsl-1 and poly(I:C)-induced expression of pro-inflammatory cytokine IL6, chemokines (CXCL8, CCL2), adhesion molecule ICAM1, prostaglandin PGF2α and its receptor PTGFR. Similarly, amnion cells transfected with siPARK7 displayed a decrease in IL1B-induced expression of IL6, CXCL8 and ICAM1. In myometrial cells transfected with siPARK7, there was a significant reduction of NF-κB RELA transcriptional activity when stimulated with fsl-1, flagellin and poly(I:C), but not with IL1B or TNF. Collectively, our novel data describe a role for PARK7 in regulating inflammation-induced pro-inflammatory and pro-labour mediators in human myometrial and amnion cells.
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Affiliation(s)
- Ratana Lim
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of MelbourneMelbourne, Victoria, Australia.,Mercy Perinatal Research CentreMercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Gillian Barker
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of MelbourneMelbourne, Victoria, Australia.,Mercy Perinatal Research CentreMercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Martha Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of MelbourneMelbourne, Victoria, Australia .,Mercy Perinatal Research CentreMercy Hospital for Women, Heidelberg, Victoria, Australia
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41
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Fernando F, Boussata S, Jongejan A, van der Post JA, Afink G, Ris-Stalpers C. In silico analysis of the Mus musculus uterine gene expression landscape during pregnancy identifies putative upstream regulators for labour. PLoS One 2018; 13:e0204236. [PMID: 30235305 PMCID: PMC6147639 DOI: 10.1371/journal.pone.0204236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 09/05/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The molecular pathways involved in the transition from uterine quiescence to overt labour are mapped and form the currently established pharmacological targets for both the induction and inhibition of human labour. However, both spontaneous premature labour and functional dystocia occur and are difficult to treat adequately. The identification of upstream regulators involved in the onset and orchestration of labour pathways is essential to develop additional therapies that will contribute to the regulation of the timing of birth. OBJECTIVES To define uterine biological processes and their upstream activators involved in the transition from uterine quiescence to overt labour. STUDY DESIGN The uterus of non-pregnant and pregnant FVB M. musculus is collected at embryonic days (E) 6.5, 8.5, 10.5, 12.5, 15.5 and 17.5 and the uterine transcriptome is determined using the Illumina mouse Ref8v2 micro-array platform. K-means clustering and Ingenuity Pathway Analysis are applied to further dissect the transcriptome data. RESULTS From E6.5 to E17.5, 5405 genes are significantly differentially expressed and they segregate into 7 unique clusters. Five of the 7 clusters are enriched for genes involved in specific biological processes that include regulation of gene-expression, T-cell receptor activation, Toll-like receptor signalling and steroid metabolism. The identification of upstream activators for differentially expressed genes between consecutive time points highlights the E10.5 to E12.5 window during which the role from progesterone switches from an activated state to the inhibited state reflecting the process of functional progesterone withdrawal essential for the transgression from myometrial quiescence to synchronized contractions. For this time window in which 189 genes are differentially expressed we define 22 putative upstream activators of which NUPR1 and TBX2 are the most significant with respectively an activated and an inhibited status. CONCLUSIONS Gene expression profiling of mice uterus from E6.5 to E17.5 results in 7 unique gene expression clusters from early to late pregnancy that define the landscape of molecular events in ongoing pregnancy. In the current dataset progesterone is predicted as an activated upstream regulator and maintainer of myometrial quiescence and is active till E10.5. Progesterone is predicted as an inhibited upstream regulator at E12.5. We identify 22 upstream regulators in the E10.5 to E12.5 time window where the switch to progesterone withdrawal occurs. They are putative relevant upstream activators of labour.
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Affiliation(s)
- Febilla Fernando
- Reproductive Biology Laboratory Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Souad Boussata
- Reproductive Biology Laboratory Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Aldo Jongejan
- Department of Bioinformatics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Joris A. van der Post
- Women’s and Children’s Clinic, Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Gijs Afink
- Reproductive Biology Laboratory Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Carrie Ris-Stalpers
- Reproductive Biology Laboratory Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Women’s and Children’s Clinic, Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- * E-mail:
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42
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Robuck MF, O'Brien CM, Knapp KM, Shay SD, West JD, Newton JM, Slaughter JC, Paria BC, Reese J, Herington JL. Monitoring uterine contractility in mice using a transcervical intrauterine pressure catheter. Reproduction 2018; 155:447-456. [PMID: 29500186 DOI: 10.1530/rep-17-0647] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 03/02/2018] [Indexed: 12/31/2022]
Abstract
In mouse models used to study parturition or pre-clinical therapeutic testing, measurement of uterine contractions is limited to either ex vivo isometric tension or operative intrauterine pressure (IUP). The goal of this study was to: (1) develop a method for transcervical insertion of a pressure catheter to measure in vivo intrauterine contractile pressure during mouse pregnancy, (2) determine whether this method can be utilized numerous times in a single mouse pregnancy without affecting the timing of delivery or fetal outcome and (3) compare the in vivo contractile activity between mouse models of term and preterm labor (PTL). Visualization of the cervix allowed intrauterine pressure catheter (IUPC) placement into anesthetized pregnant mice (plug = day 1, delivery = day 19.5). The amplitude, frequency, duration and area under the curve (AUC) of IUP was lowest on days 16-18, increased significantly (P < 0.05) on the morning of day 19 and reached maximal levels during by the afternoon of day 19 and into the intrapartum period. An AUC threshold of 2.77 mmHg discriminated between inactive labor (day 19 am) and active labor (day 19 pm and intrapartum period). Mice examined on a single vs every experimental timepoint did not have significantly different IUP, timing of delivery, offspring number or fetal/neonatal weight. The IUP was significantly greater in LPS-treated and RU486-treated mouse models of PTL compared to time-matched vehicle control mice. Intrapartum IUP was not significantly different between term and preterm mice. We conclude that utilization of a transcervical IUPC allows sensitive assessment of in vivo uterine contractile activity and labor progression in mouse models without the need for operative approaches.
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Affiliation(s)
- Michael F Robuck
- Division of NeonatologyDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Christine M O'Brien
- Department of Biomedical EngineeringVanderbilt University, Nashville, Tennessee, USA
| | - Kelsi M Knapp
- Division of NeonatologyDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sheila D Shay
- Division of AllergyPulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - James D West
- Division of AllergyPulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - J M Newton
- Division of Maternal Fetal MedicineDepartment of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - James C Slaughter
- Department of BiostatisticsVanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Bibhash C Paria
- Division of NeonatologyDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jeff Reese
- Division of NeonatologyDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Biomedical EngineeringVanderbilt University, Nashville, Tennessee, USA
| | - Jennifer L Herington
- Division of NeonatologyDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA .,Department of PharmacologyVanderbilt University, Nashville, Tennessee, USA
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43
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Abstract
In the United States, the generally accepted indication for tocolytic therapy centers on suppression of preterm labor. This may be in the form of preventative therapy with progesterone in women with prior spontaneous preterm birth or as an acute intervention to suppress established uterine contractions associated with cervical change occurring at less than 37 weeks gestation. This article seeks to apply this perspective to tocolytic therapy. Here, we provide a review of current tocolytic options and what the last decade of discovery has revealed about the regulation of myometrial excitability and quiescence. Moving forward, we must incorporate the emerging molecular data that is amassing in order to develop novel and effective tocolytic therapeutic options to prevent preterm labor and spontaneous preterm birth (sPTB).
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Affiliation(s)
| | | | - George Gallos
- Department of Anesthesia, Columbia University Medical Center, New York, NY.
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44
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Edey LF, Georgiou H, O’Dea KP, Mesiano S, Herbert BR, Lei K, Hua R, Markovic D, Waddington SN, MacIntyre D, Bennett P, Takata M, Johnson MR. Progesterone, the maternal immune system and the onset of parturition in the mouse†. Biol Reprod 2017; 98:376-395. [DOI: 10.1093/biolre/iox146] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 11/13/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Lydia F Edey
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Hector Georgiou
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Kieran P O’Dea
- Section of Anaesthetics, Pain Medicine, and Intensive Care, Faculty of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Sam Mesiano
- Department of Obstetrics and Gynecology, University Hospitals of Cleveland Medical Center, Cleveland, Ohio, USA
| | - Bronwen R Herbert
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Kaiyu Lei
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Renyi Hua
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
- Department of Obstetrics and Gynecology, University Hospitals of Cleveland Medical Center, Cleveland, Ohio, USA
| | - Danijela Markovic
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Simon N Waddington
- The International Peace Maternity & Child Health Hospital of China Welfare Institute (IPMCH), Shanghai, China
| | - David MacIntyre
- Gene Transfer Technology Group, Institute for Women's Health, University College London, London, UK
| | - Philip Bennett
- Gene Transfer Technology Group, Institute for Women's Health, University College London, London, UK
| | - Masao Takata
- Section of Anaesthetics, Pain Medicine, and Intensive Care, Faculty of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Mark R Johnson
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
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45
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Marcellin L, Schmitz T, Messaoudene M, Chader D, Parizot C, Jacques S, Delaire J, Gogusev J, Schmitt A, Lesaffre C, Breuiller-Fouché M, Caignard A, Vaiman D, Goffinet F, Cabrol D, Gorochov G, Méhats C. Immune Modifications in Fetal Membranes Overlying the Cervix Precede Parturition in Humans. THE JOURNAL OF IMMUNOLOGY 2016; 198:1345-1356. [PMID: 28031337 DOI: 10.4049/jimmunol.1601482] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 11/22/2016] [Indexed: 01/03/2023]
Abstract
In humans, parturition is currently viewed as an intrauterine outbreak of inflammation, accompanied by a massive release of proinflammatory cytokines at the maternal-fetal interface that comprises the maternal decidua, placenta, and fetal membranes. At term, fetal membranes overlying the cervix, the future site of rupture, show altered morphology and are termed the zone of altered morphology (ZAM). These alterations occur in normal fetal membranes during late pregnancy, in preparation for labor. In this study, transcriptome, flow cytometry, electron microscopy, and immunohistochemistry analyses collectively highlight a local shift in gene expression and lymphocyte activation in the ZAM. Just before labor, we show that highly polymorphic HLA-A, -B, and -C determinants of fetal origin are selectively exposed in the ZAM to the maternal immune system. A graft rejection-like program occurs in the ZAM, which involves 1) the activation of cytotoxic decidual NK cells, and 2) the decline of decidual immunotolerant M2-like macrophages. Comparison with a prior cohort of fetal membranes shows that acute inflammation only takes place after these first steps of immune modifications. Our results therefore strongly argue in favor of local immune remodeling at the onset of parturition.
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Affiliation(s)
- Louis Marcellin
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Service de Gynécologie Obstétrique I, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France.,Service de Gynécologie Obstétrique II et Médecine de la Reproduction, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France
| | - Thomas Schmitz
- Service de Gynécologie Obstétrique, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France.,Faculté de Médecine, Université Paris Diderot, 75013 Paris, France.,INSERM, U1141, 75013 Paris, France.,Département Hospitalo-Universitaire Protect, Hôpital Robert Debré, 75019 Paris, France
| | - Meriem Messaoudene
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Driss Chader
- INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, 75013 Paris, France
| | - Christophe Parizot
- INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, 75013 Paris, France.,Département d'Immunologie, Groupement Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, 75013 Paris, France; and
| | - Sébastien Jacques
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Jérémy Delaire
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Jean Gogusev
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
| | - Alain Schmitt
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Corinne Lesaffre
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Michelle Breuiller-Fouché
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
| | - Anne Caignard
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France
| | - Daniel Vaiman
- INSERM, U1016, Institut Cochin, 75014 Paris, France.,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
| | - François Goffinet
- Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Service de Gynécologie Obstétrique I, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
| | - Dominique Cabrol
- Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Service de Gynécologie Obstétrique I, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
| | - Guy Gorochov
- INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, 75013 Paris, France.,Département d'Immunologie, Groupement Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, 75013 Paris, France; and.,Centre d'Immunologie et des Maladies Infectieuses, Université Pierre et Marie Curie Université Paris 06, CR7, Sorbonne Universités, 75013 Paris, France
| | - Céline Méhats
- INSERM, U1016, Institut Cochin, 75014 Paris, France; .,CNRS, UMR8104, 75014 Paris, France.,Faculté de Médecine, Université Paris Descartes, 75015 Paris, France.,Département Hospitalo-Universitaire Risques et Grossesse, Maternité Port Royal, 75014 Paris, France
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46
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Edey LF, O'Dea KP, Herbert BR, Hua R, Waddington SN, MacIntyre DA, Bennett PR, Takata M, Johnson MR. The Local and Systemic Immune Response to Intrauterine LPS in the Prepartum Mouse. Biol Reprod 2016; 95:125. [PMID: 27760748 PMCID: PMC5333944 DOI: 10.1095/biolreprod.116.143289] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/04/2016] [Accepted: 10/11/2016] [Indexed: 01/30/2023] Open
Abstract
Inflammation plays a key role in human term and preterm labor (PTL). Intrauterine LPS has been widely used to model inflammation-induced complications of pregnancy, including PTL. It has been shown to induce an intense myometrial inflammatory cell infiltration, but the role of LPS-induced inflammatory cell activation in labor onset and fetal demise is unclear. We investigated this using a mouse model of PTL, where an intrauterine injection of 10 μg of LPS (serotype 0111:B4) was given at E16 of CD1 mouse pregnancy. This dose induced PTL at an average of 12.7 h postinjection in association with 85% fetal demise. Flow cytometry showed that LPS induced a dramatic systemic inflammatory response provoking a rapid and marked leucocyte infiltration into the maternal lung and liver in association with increased cytokine levels. Although there was acute placental inflammatory gene expression, there was no corresponding increase in fetal brain inflammatory gene expression until after fetal demise. There was marked myometrial activation of NFκB and MAPK/AP-1 systems in association with increased chemokine and cytokine levels, both of which peaked with the onset of parturition. Myometrial macrophage and neutrophil numbers were greater in the LPS-injected mice with labor onset only; prior to labor, myometrial neutrophils and monocytes numbers were greater in PBS-injected mice, but this was not associated with an earlier onset of labor. These data suggest that intrauterine LPS induces parturition directly, independent of myometrial inflammatory cell infiltration, and that fetal demise occurs without fetal inflammation. Intrauterine LPS provokes a marked local and systemic inflammatory response but with limited inflammatory cell infiltration into the myometrium or placenta.
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Affiliation(s)
- Lydia F Edey
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Kieran P O'Dea
- Section of Anaesthetics, Pain Medicine, and Intensive Care, Faculty of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Bronwen R Herbert
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Renyi Hua
- The International Peace Maternity & Child Health Hospital of China Welfare Institute (IPMCH), Shanghai, China
| | - 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 Witwatersrand, Johannesburg, South Africa
| | - David A MacIntyre
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus DuCane Road, London, United Kingdom
| | - Philip R Bennett
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus DuCane Road, London, United Kingdom
| | - Masao Takata
- Section of Anaesthetics, Pain Medicine, and Intensive Care, Faculty of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Mark R Johnson
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
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