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Hamburg-Shields E, Mesiano S. The hormonal control of parturition. Physiol Rev 2024; 104:1121-1145. [PMID: 38329421 DOI: 10.1152/physrev.00019.2023] [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: 04/20/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/09/2024] Open
Abstract
Parturition is a complex physiological process that must occur in a reliable manner and at an appropriate gestation stage to ensure a healthy newborn and mother. To this end, hormones that affect the function of the gravid uterus, especially progesterone (P4), 17β-estradiol (E2), oxytocin (OT), and prostaglandins (PGs), play pivotal roles. P4 via the nuclear P4 receptor (PR) promotes uterine quiescence and for most of pregnancy exerts a dominant block to labor. Loss of the P4 block to parturition in association with a gain in prolabor actions of E2 are key transitions in the hormonal cascade leading to parturition. P4 withdrawal can occur through various mechanisms depending on species and physiological context. Parturition in most species involves inflammation within the uterine tissues and especially at the maternal-fetal interface. Local PGs and other inflammatory mediators may initiate parturition by inducing P4 withdrawal. Withdrawal of the P4 block is coordinated with increased E2 actions to enhance uterotonic signals mediated by OT and PGs to promote uterine contractions, cervix softening, and membrane rupture, i.e., labor. This review examines recent advances in research to understand the hormonal control of parturition, with focus on the roles of P4, E2, PGs, OT, inflammatory cytokines, and placental peptide hormones together with evolutionary biology of and implications for clinical management of human parturition.
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Affiliation(s)
- Emily Hamburg-Shields
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, Ohio, United States
- Department of Obstetrics and Gynecology, University Hospitals of Cleveland, Cleveland, Ohio, United States
| | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, Ohio, United States
- Department of Obstetrics and Gynecology, University Hospitals of Cleveland, Cleveland, Ohio, United States
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Kwak YT, Montalbano AP, Kelleher AM, Colon-Caraballo M, Kraus WL, Mahendroo M, Mendelson CR. Decline in corepressor CNOT1 in the pregnant myometrium near term impairs progesterone receptor function and increases contractile gene expression. J Biol Chem 2024; 300:107484. [PMID: 38897566 DOI: 10.1016/j.jbc.2024.107484] [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: 05/04/2023] [Revised: 05/18/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Progesterone (P4), acting via its nuclear receptor (PR), is critical for pregnancy maintenance by suppressing proinflammatory and contraction-associated protein (CAP)/contractile genes in the myometrium. P4/PR partially exerts these effects by tethering to NF-κB bound to their promot-ers, thereby decreasing NF-κB transcriptional activity. However, the underlying mechanisms whereby P4/PR interaction blocks proinflammatory and CAP gene expression are not fully understood. Herein, we characterized CCR-NOT transcription complex subunit 1 (CNOT1) as a corepressor that also interacts within the same chromatin complex as PR-B. In mouse myome-trium increased expression of CAP genes Oxtr and Cx43 at term coincided with a marked decline in expression and binding of CNOT1 to NF-κB-response elements within the Oxtr and Cx43 promoters. Increased CAP gene expression was accompanied by a pronounced decrease in enrichment of repressive histone marks and increase in enrichment of active histone marks to this genomic region. These changes in histone modification were associated with changes in expression of corresponding histone modifying enzymes. Myometrial tissues from P4-treated 18.5 dpc pregnant mice manifested increased Cnot1 expression at 18.5 dpc, compared to vehicle-treated controls. P4 treatment of PR-expressing hTERT-HM cells enhanced CNOT1 expression and its recruitment to PR bound NF-κB-response elements within the CX43 and OXTR promoters. Furthermore, knockdown of CNOT1 significantly increased expression of contractile genes. These novel findings suggest that decreased expression and DNA-binding of the P4/PR-regulated transcriptional corepressor CNOT1 near term and associated changes in histone modifications at the OXTR and CX43 promoters contribute to the induction of myometrial contractility leading to parturition.
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Affiliation(s)
- Youn-Tae Kwak
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Alina P Montalbano
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Department of Pediatrics, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Andrew M Kelleher
- Department of Obstetrics & Gynecology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Laboratory of Signaling and Gene Regulation, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Mariano Colon-Caraballo
- Department of Obstetrics & Gynecology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - W Lee Kraus
- Laboratory of Signaling and Gene Regulation, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Mala Mahendroo
- Department of Obstetrics & Gynecology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas, USA.
| | - Carole R Mendelson
- Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Department of Obstetrics & Gynecology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas, USA; North Texas March of Dimes Birth Defects Center, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Tripathy S, Nagari A, Chiu SP, Nandu T, Camacho CV, Mahendroo M, Kraus WL. Relaxin Modulates the Genomic Actions and Biological Effects of Estrogen in the Myometrium by Reducing Estrogen Receptor Alpha Phosphorylation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.15.589654. [PMID: 38659934 PMCID: PMC11042280 DOI: 10.1101/2024.04.15.589654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Estradiol (E2) and relaxin (Rln) are steroid and polypeptide hormones, respectively, with important roles in the female reproductive tract, including myometrium. Some actions of Rln, which are mediated by its membrane receptor RXFP1, require or are augmented by E2 signaling through its cognate nuclear steroid receptor, estrogen receptor alpha (ERα). In contrast, other actions of Rln act in opposition to the effects of E2. Here we explore the molecular and genomic mechanisms that underlie the functional interplay between E2 and Rln in the myometrium. We used both ovariectomized female mice and immortalized human myometrial cells expressing wild type or mutant ERα (hTERT-HM-ERα cells). Our results indicate that Rln attenuates the genomic actions and biological effects of estrogen in the myometrium and myometrial cells by reducing phosphorylation ERα on serine 118 (S118). Interestingly, we observed a potent inhibitory effect of Rln on the E2-dependent binding of ERα across the genome. The reduction in ERα binding was associated with changes in the hormone-regulated transcriptome, including a decrease in the E2-dependent expression of neighboring genes. The inhibitory effects of Rln cotreatment on the E2-dependent phosphorylation of ERα required the nuclear dual-specificity phosphatases DUSP1 and DUSP5. Moreover, the inhibitory effects of Rln were reflected in a concomitant inhibition of the E2-dependent contraction of myometrial cells. Collectively, our results identify a pathway that integrates Rln/RXFP1 and E2/ERα signaling, resulting in a convergence of membrane and nuclear signaling pathways to control genomic and biological outcomes.
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Affiliation(s)
- Sudeshna Tripathy
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Laboratory of Cervical Remodeling and Preterm Birth, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Anusha Nagari
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Computational Core Facility, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shu-Ping Chiu
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Tulip Nandu
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Computational Core Facility, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Cristel V. Camacho
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mala Mahendroo
- Laboratory of Cervical Remodeling and Preterm Birth, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - W. Lee Kraus
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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Kalev-Altman R, Becker G, Levy T, Penn S, Shpigel NY, Monsonego-Ornan E, Sela-Donenfeld D. Mmp2 Deficiency Leads to Defective Parturition and High Dystocia Rates in Mice. Int J Mol Sci 2023; 24:16822. [PMID: 38069145 PMCID: PMC10706207 DOI: 10.3390/ijms242316822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Parturition is the final and essential step for mammalian reproduction. While the uterus is quiescent during pregnancy, fundamental changes arise in the myometrial contractility, inducing fetal expulsion. Extracellular matrix (ECM) remodeling is fundamental for these events. The gelatinases subgroup of matrix metalloproteinases (MMPs), MMP2 and MMP9, participate in uterine ECM remodeling throughout pregnancy and parturition. However, their loss-of-function effect is unknown. Here, we determined the result of eliminating Mmp2 and/or Mmp9 on parturition in vivo, using single- and double-knockout (dKO) mice. The dystocia rates were measured in each genotype, and uterine tissue was collected from nulliparous synchronized females at the ages of 2, 4, 9 and 12 months. Very high percentages of dystocia (40-55%) were found in the Mmp2-/- and dKO females, contrary to the Mmp9-/- and wild-type females. The histological analysis of the uterus and cervix revealed that Mmp2-/- tissues undergo marked structural alterations, including highly enlarged myometrial, endometrial and luminal cavity. Increased collagen deposition was also demonstrated, suggesting a mechanism of extensive fibrosis in the Mmp2-/- myometrium, which may result in dystocia. Overall, this study describes a new role for MMP2 in myometrium remodeling during mammalian parturition process, highlighting a novel cause for dystocia due to a loss in MMP2 activity in the uterine tissue.
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Affiliation(s)
- Rotem Kalev-Altman
- The Koret School of Veterinary Medicine, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (N.Y.S.)
- The Institute of Biochemistry, Food Science and Nutrition, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (E.M.-O.)
| | - Gal Becker
- The Institute of Biochemistry, Food Science and Nutrition, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (E.M.-O.)
| | - Tamar Levy
- The Koret School of Veterinary Medicine, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (N.Y.S.)
| | - Svetlana Penn
- The Institute of Biochemistry, Food Science and Nutrition, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (E.M.-O.)
| | - Nahum Y. Shpigel
- The Koret School of Veterinary Medicine, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (N.Y.S.)
| | - Efrat Monsonego-Ornan
- The Institute of Biochemistry, Food Science and Nutrition, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (E.M.-O.)
| | - Dalit Sela-Donenfeld
- The Koret School of Veterinary Medicine, The RH Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel (N.Y.S.)
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Riaposova L, Kim SH, Hanyaloglu AC, Sykes L, MacIntyre DA, Bennett PR, Terzidou V. Prostaglandin F2α requires activation of calcium-dependent signalling to trigger inflammation in human myometrium. Front Endocrinol (Lausanne) 2023; 14:1150125. [PMID: 37547305 PMCID: PMC10400332 DOI: 10.3389/fendo.2023.1150125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 06/06/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction Preterm birth is one of the major causes of neonatal morbidity and mortality across the world. Both term and preterm labour are preceded by inflammatory activation in uterine tissues. This includes increased leukocyte infiltration, and subsequent increase in chemokine and cytokine levels, activation of pro-inflammatory transcription factors as NF-κB and increased prostaglandin synthesis. Prostaglandin F2α (PGF2α) is one of the myometrial activators and stimulators. Methods Here we investigated the role of PGF2α in pro-inflammatory signalling pathways in human myometrial cells isolated from term non-labouring uterine tissue. Primary myometrial cells were treated with G protein inhibitors, calcium chelators and/or PGF2α. Nuclear extracts were analysed by TranSignal cAMP/Calcium Protein/DNA Array. Whole cell protein lysates were analysed by Western blotting. mRNA levels of target genes were analysed by RT-PCR. Results The results show that PGF2α increases inflammation in myometrial cells through increased activation of NF-κB and MAP kinases and increased expression of COX-2. PGF2α was found to activate several calcium/cAMP-dependent transcription factors, such as CREB and C/EBP-β. mRNA levels of NF-κB-regulated cytokines and chemokines were also elevated with PGF2α stimulation. We have shown that the increase in PGF2α-mediated COX-2 expression in myometrial cells requires coupling of the FP receptor to both Gαq and Gαi proteins. Additionally, PGF2α-induced calcium response was also mediated through Gαq and Gαi coupling. Discussion In summary, our findings suggest that PGF2α-induced inflammation in myometrial cells involves activation of several transcription factors - NF-κB, MAP kinases, CREB and C/EBP-β. Our results indicate that the FP receptor signals via Gαq and Gαi coupling in myometrium. This work provides insight into PGF2α pro-inflammatory signalling in term myometrium prior to the onset of labour and suggests that PGF2α signalling pathways could be a potential target for management of preterm labour.
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Affiliation(s)
- Lucia Riaposova
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
| | - Sung Hye Kim
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
| | - Aylin C. Hanyaloglu
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Lynne Sykes
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
- The Parasol Foundation Centre for Women’s Health and Cancer Research, St Mary’s Hospital, Imperial College Healthcare National Health Service (NHS) Trust, London, United Kingdom
| | - David A. MacIntyre
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
| | - Phillip R. Bennett
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
| | - Vasso Terzidou
- Parturition Research Group, Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- The March of Dimes European Prematurity Research Centre at Imperial College London, London, United Kingdom
- Department of Obstetrics & Gynaecology, Chelsea and Westminster Hospital National Health Service (NHS) Trust, London, United Kingdom
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Wan L, Hu X, Xia T, Li F, Chi Q, Ma H, Yan S, Li W, Huang W. Disruption of Cdyl gene impairs mouse lung epithelium differentiation and maturation. Gene 2023; 853:147088. [PMID: 36464171 DOI: 10.1016/j.gene.2022.147088] [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: 05/21/2022] [Revised: 11/08/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022]
Abstract
CDYL is a chromodomain protein that has been identified as a transcriptional co-repressor that is primarily involved in the formation of repressor complexes which coordinate histone modifications to repress gene transcription. However, most functions and mechanisms of action of the CDYL protein are unknown. In this study, we show that Cdyl-/- mice died of respiratory distress immediately at birth because of distinct abnormalities in distal lung morphogenesis which was characterized by thickened septal and expiratory alveolus atelectasis. Furthermore, Cdyl deletion in mice led to excessive proliferation of immature epithelial cells and an arrest in alveolar epithelium cell differentiation in late gestation which were associated with decreased secretion of mature surfactant proteins in alveolus. Microarray analysis showed that Cdyl gene deletion influenced the expression of genes regulating neuroactive ligand-receptor interactions, cell adhesion, and cell cycle. We validated that Cdyl repressed the transcriptional activity of Cks1 in vitro. In conclusion, Cdyl gene participates in the perinatal respiratory epithelium differentiation and maturation that is important for normal lung function at birth.
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Affiliation(s)
- Li Wan
- Clinical Laboratory, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China; Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaojun Hu
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Tian Xia
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310005, China
| | - Fugui Li
- Cancer Research Institute of Zhongshan City, Zhongshan City People's Hospital, Zhongshan 528403, China
| | - Qiong Chi
- Clinical Laboratory, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China
| | - Hongmei Ma
- Clinical Laboratory, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China
| | - Sunxing Yan
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Weiqiang Li
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Weijun Huang
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.
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Mesiano S. Progesterone withdrawal and parturition. J Steroid Biochem Mol Biol 2022; 224:106177. [PMID: 36096351 DOI: 10.1016/j.jsbmb.2022.106177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/30/2022] [Accepted: 09/07/2022] [Indexed: 11/18/2022]
Abstract
The steroid hormone progesterone (P4), acting via the nuclear P4 receptors (PRs) in uterine cells, is essential for the establishment and maintenance of pregnancy. P4/PR signaling maintains pregnancy by promoting uterine quiescence and blocking the contractions of labor. Withdrawal of the P4/PR block to labor induces parturition. The success of pregnancy requires the timely birth of a mature neonate to a healthy mother, and to this end, the mechanism by which the P4/PR block is withdrawn, and how that process is physiologically controlled is critical. This review examines current understanding of cell and molecular biology of P4/PR withdrawal in the control of parturition.
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Affiliation(s)
- Sam Mesiano
- William H Weir MD Professor of Reproductive Biology, Department of Reproductive Biology Case, Western Reserve University, USA; Department of Obstetrics and Gynecology, University Hospitals of Cleveland, 11100 Euclid Ave, Cleveland, OH 44106, USA.
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8
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Tripathy S, Nallasamy S, Mahendroo M. Progesterone and its receptor signaling in cervical remodeling: Mechanisms of physiological actions and therapeutic implications. J Steroid Biochem Mol Biol 2022; 223:106137. [PMID: 35690241 PMCID: PMC9509468 DOI: 10.1016/j.jsbmb.2022.106137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 05/26/2022] [Accepted: 06/06/2022] [Indexed: 10/18/2022]
Abstract
The remodeling of the cervix from a closed rigid structure to one that can open sufficiently for passage of a term infant is achieved by a complex series of molecular events that in large part are regulated by the steroid hormones progesterone and estrogen. Among hormonal influences, progesterone exerts a dominant role for most of pregnancy to initiate a loss of tissue strength yet maintain competence in a phase termed softening. Equally important are the molecular events that abrogate progesterone function in late pregnancy to allow a loss of tissue competence and strength during cervical ripening and dilation. In this review, we focus on current understanding by which progesterone receptor signaling for the majority of pregnancy followed by a loss/shift in progesterone receptor action at the end of pregnancy, collectively ensure cervical remodeling as necessary for successful parturition.
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Affiliation(s)
- Sudeshna Tripathy
- Division of Basic Research, Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shanmugasundaram Nallasamy
- Division of Basic Research, Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mala Mahendroo
- Division of Basic Research, Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Cecil H. and Ida Green Center for Reproductive Biology Sciences, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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Adiponectin affects uterine steroidogenesis during early pregnancy and the oestrous cycle: An in vitro study. Anim Reprod Sci 2022; 245:107067. [PMID: 36113273 DOI: 10.1016/j.anireprosci.2022.107067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/17/2022] [Accepted: 09/02/2022] [Indexed: 11/21/2022]
Abstract
Reproduction in females is an energetically demanding process. We assumed that adiponectin (ADPN), known for its role in energy balance maintenance, is also engaged in the regulation of uterine steroidogenesis in the pig. We determined the impact of ADPN alone or in combination with insulin (INS) on testosterone (T), estrone (E1) and estradiol (E2) secretion by porcine endometrium and myometrium, uterine expression of CYP17A1 and CYP19A3 genes, and endometrial abundance of P450C17 and P450AROM proteins during the peri-implantation period and the oestrous cycle, using radioimmunoassay, qPCR, and Western Blot, respectively. During pregnancy, in the endometrial explants from days 10-11, ADPN decreased CYP17A1 gene expression, P450C17 protein abundance and T secretion, whereas increased E1 secretion. On days 12-13 of pregnancy, ADPN decreased CYP17A1 and CYP19A3 expression, P450C17 and P450AROM protein abundance and E1 secretion, but stimulated T secretion. On days 15-16 of pregnancy, ADPN decreased P450C17 protein accumulation but enhanced CYP19A3 expression and E1 secretion. On days 27-28 of pregnancy, ADPN increased CYP17A1 and CYP19A3 mRNA content and T secretion in this tissue and decreased P450C17 content. ADPN effect on myometrial explants was dependent on stage of gestation or oestrous cycle. Moreover, INS treatment modulated basal and ADPN-affected steroidogenic enzymes gene and protein expression and steroids secretion. The results obtained indicate that ADPN may affect processes required for successful implantation such as steroidogenesis. ADPN and INS were also shown to modulate each other action, which indicates that the proper course of uterine steroidogenesis may be dependent on both hormones' interaction.
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Kozakiewicz ML, Zhang J, Leone-Kabler S, Yamaleyeva LM, McDonald AG, Brost BC, Howlett AC. Differential Expression of CB 1 Cannabinoid Receptor and Cannabinoid Receptor Interacting Protein 1a in Labor. Cannabis Cannabinoid Res 2022; 7:279-288. [PMID: 33998898 PMCID: PMC9225407 DOI: 10.1089/can.2020.0107] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background: The endocannabinoid system is present in multiple organ systems and is involved in smooth muscle regulation, immune function, neuroendocrine modulation, and metabolism of tissues. Limited data are available regarding the presence and role of this system in reproductive tissues. Components of the endocannabinoid system have been identified in myometrial and placental tissues. However, no study has investigated differential expression of the endocannabinoid system in labor. Objectives: The purpose of this study was to identify and quantify two components of the endocannabinoid system, the CB1 cannabinoid receptor and cannabinoid receptor interacting protein 1a (CRIP1a) in uterine and placental tissues, and to determine if there is differential expression in tissues exposed to labor. We hypothesized that CB1 cannabinoid receptor concentration would be altered in uterine and placental tissue exposed to labor compared with tissues not exposed to labor. Study Design: Uterine and placental tissue samples were collected in nine laboring and 11 nonlaboring women undergoing cesarean delivery. CB1 cannabinoid receptor and CRIP1a presence and quantification were evaluated using western blot, immunohistochemistry, and real-time quantitative polymerase chain reaction. Statistical comparisons of laboring and nonlaboring subjects were made for uterine and placental tissue using a Mann-Whitney test. Results: Immunohistochemistry demonstrated positive staining for CB1 cannabinoid receptors and CRIP1a in uterine tissue. The protein abundance of CB1 cannabinoid receptor in uterine tissue was significantly lower in tissues exposed to labor (p=0.01). The protein abundance of CRIP1a was lower in uterine tissue exposed to labor but did not reach statistical significance (p=0.06). mRNA expression of CB1 cannabinoid receptor (p=0.20) and CRIP1a (p=0.63) did not differ in labored compared with nonlabored uterine tissues. Conclusions: Our findings of diminished protein density of CB1 cannabinoid receptor in uterine tissue exposed to labor support the hypothesis that the endocannabinoid system plays a role in parturition. Our data add to the growing body of evidence indicating the endocannabinoid system is of importance for successful reproduction and support the need for additional research investigating this complex system as it pertains to labor. ClinicalTrials.gov ID: NCT03752021.
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Affiliation(s)
- Melissa L. Kozakiewicz
- Section on Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Jie Zhang
- Section on Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Sandra Leone-Kabler
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Liliya M. Yamaleyeva
- Department of Surgery, Hypertension and Vascular Research Center, Wake Forest School of Medicine BioTech Place, Winston-Salem, North Carolina, USA
| | - Anna G. McDonald
- Department of Pathology, Perinatal/Autopsy Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Brian C. Brost
- Section on Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Allyn C. Howlett
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
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11
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Zhao Z, Chen L, Cao M, Chen T, Huang Y, Wang N, Zhang B, Li F, Chen K, Yuan C, Li C, Zhou X. Comparison of lncRNA Expression in the Uterus between Periods of Embryo Implantation and Labor in Mice. Animals (Basel) 2022; 12:ani12030399. [PMID: 35158722 PMCID: PMC8833358 DOI: 10.3390/ani12030399] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/25/2022] [Accepted: 02/03/2022] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Progesterone has been proven to play an important role in female mammals during pregnancy. In this study, the uteri of pregnant mice were collected to compare mRNA and lncRNA expression between periods of embryo implantation and labor. The results show that 19 known differentially expressed lncRNAs and 31 novel differentially lncRNAs were commonly expressed between the two stages, indicating that these lncRNAs’ function is related to progesterone. Abstract Uterine function during pregnancy is regulated mainly by progesterone (P4) and estrogen (E2). Serum P4 levels are known to fluctuate significantly over the course of pregnancy, especially during embryo implantation and labor. In this study, pregnant mice at E0.5, E4.5, E15.5, and E18.5 (n = 3/E) were used for an RNA-Seq-based analysis of mRNA and lncRNA expression. In this analysis, 1971 differentially expressed (DE) mRNAs, 493 known DE lncRNAs, and 1041 novel DE lncRNAs were found between E0.5 and E4.5 at the embryo implantation stage, while 1149 DE mRNAs, 192 known DE lncRNAs, and 218 novel DE lncRNAs were found between E15.5 and E18.5 at the labor stage. The expression level of lncRNA-MMP11 was significantly downregulated by P4 treatment on MSM cells, while lncRNA-ANKRD37 was significantly upregulated. Notably, 117 DE mRNAs, 19 known DE lncRNAs, and 31 novel DE lncRNAs were commonly expressed between the two stages, indicating that these mRNAs and lncRNAs may be directly or indirectly regulated by P4.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Xu Zhou
- Correspondence: (C.L.); (X.Z.)
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12
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Hu TM, Lee SH, Loh EW. Effectiveness of aromatherapy for intrapartum and postpartum emotional problems among parturient women: A meta-analysis of randomized controlled trials. Jpn J Nurs Sci 2022; 19:e12471. [PMID: 35112497 DOI: 10.1111/jjns.12471] [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: 08/26/2021] [Revised: 11/15/2021] [Accepted: 12/12/2021] [Indexed: 11/29/2022]
Abstract
AIM Perinatal negative emotions are common in parturient women, but the problems are often ignored. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) that investigated the effectiveness of aromatherapy for intrapartum anxiety (IPA) and postpartum emotional symptoms (PES). METHODS We searched PubMed, Embase, Cochrane library, and ClinicalTrials.gov to identify suitable RCTs for analysis, and the study was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. RESULTS Nine RCTs were included. The meta-analysis showed aromatherapy reduced IPA during the early to active phase (standardized mean difference [SMD]: -1.56 [-2.55, -0.61]) and during the transition phase (SMD: -3.30 [-4.97, -1.63]) when compared with controls. For the postpartum period, the meta-analyses showed a reduction of postpartum depression (PPD) at week 2 (SMD: -0.43 [-0.82, -0.03]), and a non-significant trend toward the reduction of PPD at weeks 4-6 (SMD: -0.70 [-1.40, 0.01]). CONCLUSION Our study found some evidence supporting the effectiveness of aromatherapy in reducing intrapartum anxiety and PES. We recommend the optional use of aromatherapy for intrapartum and postpartum care.
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Affiliation(s)
- Tsung-Ming Hu
- Department of Psychiatry, Yuli Branch, Taipei Veterans General Hospital, Hualien County, Taiwan.,Department of Future Studies and LOHAS Industry, Fo Guang University, Yilan County, Taiwan
| | - Szu-Han Lee
- Department of Family Medicine, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan
| | - El-Wui Loh
- Center for Evidence-Based Health Care, Department of Medical Research, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.,Department of Dentistry, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan
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13
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Mikulska J, Juszczyk G, Gawrońska-Grzywacz M, Herbet M. HPA Axis in the Pathomechanism of Depression and Schizophrenia: New Therapeutic Strategies Based on Its Participation. Brain Sci 2021; 11:brainsci11101298. [PMID: 34679364 PMCID: PMC8533829 DOI: 10.3390/brainsci11101298] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 12/27/2022] Open
Abstract
The hypothalamic-pituitary-adrenal (HPA) axis is involved in the pathophysiology of many neuropsychiatric disorders. Increased HPA axis activity can be observed during chronic stress, which plays a key role in the pathophysiology of depression. Overactivity of the HPA axis occurs in major depressive disorder (MDD), leading to cognitive dysfunction and reduced mood. There is also a correlation between the HPA axis activation and gut microbiota, which has a significant impact on the development of MDD. It is believed that the gut microbiota can influence the HPA axis function through the activity of cytokines, prostaglandins, or bacterial antigens of various microbial species. The activity of the HPA axis in schizophrenia varies and depends mainly on the severity of the disease. This review summarizes the involvement of the HPA axis in the pathogenesis of neuropsychiatric disorders, focusing on major depression and schizophrenia, and highlights a possible correlation between these conditions. Although many effective antidepressants are available, a large proportion of patients do not respond to initial treatment. This review also discusses new therapeutic strategies that affect the HPA axis, such as glucocorticoid receptor (GR) antagonists, vasopressin V1B receptor antagonists and non-psychoactive CB1 receptor agonists in depression and/or schizophrenia.
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14
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Kozakiewicz ML, Grotegut CA, Howlett AC. Endocannabinoid System in Pregnancy Maintenance and Labor: A Mini-Review. Front Endocrinol (Lausanne) 2021; 12:699951. [PMID: 34220722 PMCID: PMC8242576 DOI: 10.3389/fendo.2021.699951] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 05/31/2021] [Indexed: 01/21/2023] Open
Abstract
The endocannabinoid system (ECS) is a cell-signaling system present in multiple organ systems and is an integral part of sustaining the microenvironment necessary for early pregnancy success and maintenance. It plays a significant role in embryo development, transport and implantation as well as placentation. The current theory behind the initiation of term labor is that it is a complex, multifactorial process involving sex steroid hormones, prostaglandin production and interplay at the maternal-fetal interface resulting in increased expression of receptors and gap junctions that promote uterine activation. There is increasing evidence that, in addition to early pregnancy events, the ECS plays a regulatory role in pregnancy maintenance and the timing of labor. This review presents an overview of the ECS in pregnancy that focuses on late gestation and parturition.
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Affiliation(s)
- Melissa L. Kozakiewicz
- Department of Obstetrics and Gynecology, Section on Maternal-Fetal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Chad A. Grotegut
- Department of Obstetrics and Gynecology, Section on Maternal-Fetal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Allyn C. Howlett
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States
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15
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Nadeem L, Balendran R, Dorogin A, Mesiano S, Shynlova O, Lye SJ. Pro-inflammatory signals induce 20α-HSD expression in myometrial cells: A key mechanism for local progesterone withdrawal. J Cell Mol Med 2021; 25:6773-6785. [PMID: 34114342 PMCID: PMC8278114 DOI: 10.1111/jcmm.16681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 01/03/2023] Open
Abstract
Metabolism of progesterone (P4) by the enzyme 20α hydroxysteroid dehydrogenase (20α‐HSD) in myometrial cells is postulated to be a mechanism for P4 withdrawal, which occurs concomitant to uterine inflammation (physiologic or infection‐induced) and associated activation of transcription factors: NF‐кB and AP‐1, common to term and preterm labour. We found that 20α‐HSD protein is significantly increased in human myometrium during term labour, and in mouse uterus during term and preterm labour. Treatment of human myometrial cells with the pro‐inflammatory mediators, lipopolysaccharide (LPS, mimicking infection) and 12‐O‐tetradecanoylphorbol‐13‐acetate (TPA, mimicking inflammation), induced 20α‐HSD gene expression and increased 20α‐HSD protein abundance. LPS treatment decreased P4 release into the culture medium and resulted in up‐regulation of GJA1 in the hTERT‐HM cells. The NF‐кB /AP‐1 transcription factors mediated effects of LPS and TPA on 20α‐HSD gene transcription. Both pro‐inflammatory stimuli induced 20α‐HSD promoter activity in LPS/TPA‐treated cells which was significantly attenuated by inhibition of NF‐кB (JSH: 20 µM) or AP‐1 signalling (T5224: 10 µM). Deletion of NF‐кB consensus sites abrogated LPS‐mediated promoter induction, while removal of AP‐1 sites reversed the TPA‐mediated induction of 20α‐HSD promoter. We conclude that inflammatory stimuli (physiologic or pathologic) that activate NF‐кB or AP‐1 induce 20α‐HSD transcription and subsequent local P4 withdrawal resulting in up‐regulation of GJA1 and activation of myometrium that precedes labour.
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Affiliation(s)
- Lubna Nadeem
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Rathesh Balendran
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, OH, USA
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
| | - Stephen J Lye
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
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16
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Fernando F, Veenboer GJ, Oudijk MA, Kampman MA, Heida KY, Lagendijk LJ, van der Post JA, Jongejan A, Afink GB, Ris-Stalpers C. TBX2, a Novel Regulator of Labour. ACTA ACUST UNITED AC 2021; 57:medicina57060515. [PMID: 34064060 PMCID: PMC8224059 DOI: 10.3390/medicina57060515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Therapeutic interventions targeting molecular factors involved in the transition from uterine quiescence to overt labour are not substantially reducing the rate of spontaneous preterm labour. The identification of novel rational therapeutic targets are essential to prevent the most common cause of neonatal mortality. Based on our previous work showing that Tbx2 (T-Box transcription factor 2) is a putative upstream regulator preceding progesterone withdrawal in mouse myometrium, we now investigate the role of TBX2 in human myometrium. Materials and Methods: RNA microarray analysis of (A) preterm human myometrium samples and (B) myometrial cells overexpressing TBX2 in vitro, combined with subsequent analysis of the two publicly available datasets of (C) Chan et al. and (D) Sharp et al. The effect of TBX2 overexpression on cytokines/chemokines secreted to the myometrium cell culture medium were determined by Luminex assay. Results: Analysis shows that overexpression of TBX2 in myometrial cells results in downregulation of TNFα- and interferon signalling. This downregulation is consistent with the decreased expression of cytokines and chemokines of which a subset has been previously associated with the inflammatory pathways relevant for human labour. In contrast, CXCL5 (C-X-C motif chemokine ligand 5), CCL21 and IL-6 (Interleukin 6), previously reported in relation to parturition, do not seem to be under TBX2 control. The combined bioinformatical analysis of the four mRNA datasets identifies a subset of upstream regulators common to both preterm and term labour under control of TBX2. Surprisingly, TBX2 mRNA levels are increased in preterm contractile myometrium. Conclusions: We identified a subset of upstream regulators common to both preterm and term labour that are activated in labour and repressed by TBX2. The increased TBX2 mRNA expression in myometrium collected during a preterm caesarean section while in spontaneous preterm labour compared to tissue harvested during iatrogenic preterm delivery does not fit the bioinformatical model. We can only explain this by speculating that the in vivo activity of TBX2 in human myometrium depends not only on the TBX2 expression levels but also on levels of the accessory proteins necessary for TBX2 activity.
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Affiliation(s)
- Febilla Fernando
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Geertruda J.M. Veenboer
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Martijn A. Oudijk
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
| | - Marlies A.M. Kampman
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands;
| | - Karst Y. Heida
- Department of Obstetrics, Division of Woman and Baby, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
| | - Louise J.M. Lagendijk
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Joris A.M. van der Post
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
| | - Aldo Jongejan
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
| | - Gijs B. Afink
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Carrie Ris-Stalpers
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
- Correspondence: ; Tel.: +312-0566-5625
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17
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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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18
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Cohen WR, Friedman EA. Clinical evaluation of labor: an evidence- and experience-based approach. J Perinat Med 2021; 49:241-253. [PMID: 33068385 DOI: 10.1515/jpm-2020-0256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 09/17/2020] [Indexed: 01/20/2023]
Abstract
During labor mother and fetus are evaluated at intervals to assess their well-being and determine how the labor is progressing. These assessments require skillful physical diagnosis and the ability to translate the acquired information into meaningful prognostic decision-making. We describe a coordinated approach to the assessment of labor. Graphing of serial measurements of cervical dilatation and fetal station creates "labor curves," which provide diagnostic and prognostic information. Based on these curves we recognize nine discrete labor abnormalities. Many may be related to insufficient or disordered contractile mechanisms. Several factors are strongly associated with development of labor disorders, including cephalopelvic disproportion, excess analgesia, fetal malpositions, intrauterine infection, and maternal obesity. Clinical cephalopelvimetry involves assessing pelvic traits and predicting their effects on labor. These observations must be integrated with information derived from the labor curves. Exogenous oxytocin is widely used. It has a high therapeutic index, but is easily misused. Oxytocin treatment should be restricted to situations in which its potential benefits clearly outweigh its risks. This requires there be a documented labor dysfunction or a legitimate medical reason to shorten the labor. Normal labor and delivery pose little risk to a healthy fetus; but dysfunctional labors, especially if stimulated excessively by oxytocin or terminated by complex operative vaginal delivery, have the potential for considerable harm. Conscientiously implemented, the approach to the evaluation of labor outlined in this review will result in a reasonable cesarean rate and minimize risks that may accrue from the labor and delivery process.
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Affiliation(s)
- Wayne R Cohen
- Department of Obstetrics and Gynecology, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Emanuel A Friedman
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, USA
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19
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Progesterone receptor isoform B regulates the Oxtr- Plcl2- Trpc3 pathway to suppress uterine contractility. Proc Natl Acad Sci U S A 2021; 118:2011643118. [PMID: 33707208 DOI: 10.1073/pnas.2011643118] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Uterine contractile dysfunction leads to pregnancy complications such as preterm birth and labor dystocia. In humans, it is hypothesized that progesterone receptor isoform PGR-B promotes a relaxed state of the myometrium, and PGR-A facilitates uterine contraction. This hypothesis was tested in vivo using transgenic mouse models that overexpress PGR-A or PGR-B in smooth muscle cells. Elevated PGR-B abundance results in a marked increase in gestational length compared to control mice (21.1 versus 19.1 d respectively, P < 0.05). In both ex vivo and in vivo experiments, PGR-B overexpression leads to prolonged labor, a significant decrease in uterine contractility, and a high incidence of labor dystocia. Conversely, PGR-A overexpression leads to an increase in uterine contractility without a change in gestational length. Uterine RNA sequencing at midpregnancy identified 1,174 isoform-specific downstream targets and 424 genes that are commonly regulated by both PGR isoforms. Gene signature analyses further reveal PGR-B for muscle relaxation and PGR-A being proinflammatory. Elevated PGR-B abundance reduces Oxtr and Trpc3 and increases Plcl2 expression, which manifests a genetic profile of compromised oxytocin signaling. Functionally, both endogenous PLCL2 and its paralog PLCL1 can attenuate uterine muscle cell contraction in a CRISPRa-based assay system. These findings provide in vivo support that PGR isoform levels determine distinct transcriptomic landscapes and pathways in myometrial function and labor, which may help further the understanding of abnormal uterine function in the clinical setting.
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20
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Ewington LJ, Quenby S. Full Dilatation Caesarean Section and the Risk of Preterm Delivery in a Subsequent Pregnancy: A Historical Cohort Study. J Clin Med 2020; 9:jcm9123998. [PMID: 33321784 PMCID: PMC7763432 DOI: 10.3390/jcm9123998] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/03/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022] Open
Abstract
Full dilatation caesarean sections (CS) have increased risk of uterine extensions, which leads to cervical trauma that has been associated with an increased risk of spontaneous preterm birth (sPTB) in a subsequent pregnancy. The aim of this study was to determine if CS at full dilatation increased the risk of sPTB in a subsequent pregnancy in our unit. A historical cohort study was performed on women delivered by emergency CS between 2008–2015 (n = 5808) in a university hospital who had a subsequent pregnancy in this time frame (n = 1557). Women were classified into two exposure groups; those who were 6–9 cm and those fully dilated at index CS. The reference group was CS at 0–5 cm dilated. The primary outcome was sPTB < 37 weeks’ gestation. CS at 6–9 cm or fully dilated did not significantly increase the odds of sPTB in a subsequent pregnancy (aOR 1.64, 95% CI: 0.83–3.28, p = 0.158; aOR 1.86, 95% CI: 0.91–3.83; p = 0.090, respectively). However, a short interpregnancy interval of <1 year significantly increased the odds of sPTB in a subsequent pregnancy (aOR 3.10, 95% CI: 1.71–5.61). This study has found a short interpregnancy interval following a CS conferred a higher risk of sPTB than full dilatation CS. This finding highlights postnatal contraception and increased surveillance of women with short interpregnancy interval post CS as possible interventions to reduce sPTB.
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Affiliation(s)
- Lauren Jade Ewington
- Division of Biomedical Sciences, University of Warwick, Coventry CV2 2DX, UK;
- Department of Women and Children, University Hospitals Coventry and Warwickshire, Coventry CV2 2DX, UK
- Correspondence: ; Tel.: +44-24-7696-8702
| | - Siobhan Quenby
- Division of Biomedical Sciences, University of Warwick, Coventry CV2 2DX, UK;
- Department of Women and Children, University Hospitals Coventry and Warwickshire, Coventry CV2 2DX, UK
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21
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Expression profile of proinflammatory mediators in the placenta of mares during physiological detachment and retention of fetal membranes. Cytokine 2020; 137:155307. [PMID: 33011402 DOI: 10.1016/j.cyto.2020.155307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/01/2020] [Accepted: 09/18/2020] [Indexed: 01/03/2023]
Abstract
Physiological parturition is characterized by sterile, inflammatory-like processes. During parturition, the placenta expresses various proinflammatory mediators, such as chemokines and IL-17. Nevertheless, inflammatory processes present in the parturient mare are poorly characterized. The aim of this study was to investigate the expression of selected chemokines and IL-17 in the allantochorion and the endometrium of mares that retained fetal membranes (RFM) and expelled them physiologically. We hypothesized that the expression of these mediators may be altered in the placenta of mares with RFM and result in RFM occurrence. Differences in mRNA expression in the placenta of investigated groups of mares were detected for CCL2, CCL3, CCL4, CCL8, CXCL1, CXCL8, CXCL10, CX3CL1 and IL-17. There were no differences in mRNA expression of CCL5 and CXCL6. Gene ontology network analysis showed enrichment in genes related to leukocyte migration, cell chemotaxis and response to chemokine in tissues of RFM mares. Analysis of association network suggested denotations between CXCL6, CXCL8, CXCL1, CCL5, CCL4, CX3CL1 and CXCL10. Moreover, possible inhibition of CXCL10 by IL-17A and prostaglandin peroxide synthase 2 (PTGS2) by CXCL1 was detected. Our results suggest that, based on differences in chemokines and IL-17 expression, recruited subsets of leukocytes might differ between the analyzed groups of mares, which in turn may impair the separation of fetal membranes in the group of RFM mares. In addition, the results of the expression analysis suggest that macrophages might be one of the most abundant cells infiltrating the equine placenta during the expulsion of fetal membranes. Furthermore, we suspect that the synthesis of PTGS2 might be inhibited in mares with RFM.
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Jaworska J, Tobolski D, Janowski T. Is similarity in Major Histocompatibility Complex (MHC) associated with the incidence of retained fetal membranes in draft mares? A cross-sectional study. PLoS One 2020; 15:e0237765. [PMID: 32804960 PMCID: PMC7430710 DOI: 10.1371/journal.pone.0237765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 08/04/2020] [Indexed: 01/01/2023] Open
Abstract
The failure of the maternal immune system to recognize fetal antigens and vice versa due to MHC similarity between the foal and its dam might result in the lack of placental separation during parturition in mares. The aim of the study was to investigate the influence of MHC similarity between a mare and a foal on the incidence of retained fetal membranes (RFM) in post-partum mares. DNA was sampled from 43 draft mares and their foals. Mares which failed to expel fetal membranes within three hours after foal expulsion were considered the RFM group (n = 14) and mares that expelled fetal membranes during the above period were the control group (n = 29). Nine MHC microsatellites of MHC I and MHC II were amplified for all mares and foals. MHC compatibility and MHC genetic similarity between mares and their foals was determined based on MHC microsatellites. The inbreeding coefficient was also calculated for all horses. The incidence of RFM in the studied population was 33%. Compatibility in MHC I and MHC II did not increase the risk of RFM in the studied population of draft mares (P>0.05). Differences in MHC similarity at the genetic level were not observed between mare-foal pairs in RFM and control group (P>0.05). We suspect that RFM in draft mares may not be associated with MHC similarity between a foal and its dam. Despite the above, draft horses could be genetically predisposed to the disease.
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Affiliation(s)
- Joanna Jaworska
- Department of Animal Reproduction with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
- * E-mail:
| | - Dawid Tobolski
- Department of Internal Diseases with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Tomasz Janowski
- Department of Animal Reproduction with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
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Zoubovsky SP, Hoseus S, Tumukuntala S, Schulkin JO, Williams MT, Vorhees CV, Muglia LJ. Chronic psychosocial stress during pregnancy affects maternal behavior and neuroendocrine function and modulates hypothalamic CRH and nuclear steroid receptor expression. Transl Psychiatry 2020; 10:6. [PMID: 32066677 PMCID: PMC7026416 DOI: 10.1038/s41398-020-0704-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/09/2019] [Accepted: 12/20/2019] [Indexed: 02/06/2023] Open
Abstract
Postpartum depression (PPD) affects up to 20% of mothers and has negative consequences for both mother and child. Although exposure to psychosocial stress during pregnancy and abnormalities in the hypothalamic pituitary adrenal (HPA) axis have been linked to PPD, molecular changes in the brain that contribute to this disease remain unknown. This study utilized a novel chronic psychosocial stress paradigm during pregnancy (CGS) to investigate the effects of psychosocial stress on maternal behavior, neuroendocrine function, and gene expression changes in molecular regulators of the HPA axis in the early postpartum period. Postpartum female mice exposed to CGS display abnormalities in maternal behavior, including fragmented and erratic maternal care patterns, and the emergence of depression and anxiety-like phenotypes. Dysregulation in postpartum HPA axis function, evidenced by blunted circadian peak and elevation of stress-induced corticosterone levels, was accompanied by increased CRH mRNA expression and a reduction in CRH receptor 1 in the paraventricular nucleus of the hypothalamus (PVN). We further observed decreased PVN expression of nuclear steroid hormone receptors associated with CRH transcription, suggesting these molecular changes could underlie abnormalities in postpartum HPA axis and behavior observed. Overall, our study demonstrates that psychosocial stress during pregnancy induces changes in neuroendocrine function and maternal behavior in the early postpartum period and introduces our CGS paradigm as a viable model that can be used to further dissect the molecular defects that lead to PPD.
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Affiliation(s)
- Sandra P Zoubovsky
- Center for the Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Sarah Hoseus
- Center for the Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Shivani Tumukuntala
- Center for the Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jay O Schulkin
- Department of Neuroscience, Georgetown University, Washington, DC, USA
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Michael T Williams
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Charles V Vorhees
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Louis J Muglia
- Center for the Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
- Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Zierden HC, Ortiz Ortiz JI, Dimitrion P, Laney V, Bensouda S, Anders NM, Scardina M, Hoang T, Ronnett BM, Hanes J, Burd I, Mahendroo M, Ensign LM. Characterization of an Adapted Murine Model of Intrauterine Inflammation-Induced Preterm Birth. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 190:295-305. [PMID: 31837289 DOI: 10.1016/j.ajpath.2019.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/11/2019] [Accepted: 10/03/2019] [Indexed: 11/17/2022]
Abstract
Preterm birth (PTB) affects nearly 15 million infants each year. Of these PTBs, >25% are a result of inflammation or infection. Animal models have improved our understanding of the mechanisms leading to PTB. Prior work has described induction of intrauterine inflammation in mice with a single injection of lipopolysaccharide (LPS). Herein, we have improved the reproducibility and potency of LPS in the model using two injections distal to the cervix. An in vivo imaging system revealed more uniform distribution of Evans Blue Dye using a double distal injection (DDI) approach compared with a single proximal injection (SPI). Endotoxin concentrations in vaginal lavage fluid from SPI dams were significantly higher than from DDI dams. At equivalent LPS doses, DDI consistently induced more PTB than SPI, and DDI showed a linear dose-response, whereas SPI did not. Gene expression in myometrial tissue revealed increased levels of inflammatory markers in dams that received LPS DDI compared with LPS SPI. The SPI group showed more significant overexpression in cervical remodeling genes, likely due to the leakage of LPS from the uterine horns through the cervix. The more reliable PTB induction and uniform uterine exposure provided by this new model will be useful for further studying fetal outcomes and potential therapeutics for the prevention of inflammation-induced PTB.
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Affiliation(s)
- Hannah C Zierden
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Jairo I Ortiz Ortiz
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Peter Dimitrion
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Victoria Laney
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Sabrine Bensouda
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Nicole M Anders
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Morgan Scardina
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Thuy Hoang
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Brigitte M Ronnett
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Justin Hanes
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland; Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Irina Burd
- Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Integrated Research Center for Fetal Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Mala Mahendroo
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Laura M Ensign
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland; Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland; The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Integrated Research Center for Fetal Medicine, Johns Hopkins University, Baltimore, Maryland.
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25
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Wu SP, Anderson ML, Wang T, Zhou L, Emery OM, Li X, DeMayo FJ. Dynamic transcriptome, accessible genome, and PGR cistrome profiles in the human myometrium. FASEB J 2019; 34:2252-2268. [PMID: 31908010 DOI: 10.1096/fj.201902654r] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/20/2019] [Accepted: 11/23/2019] [Indexed: 02/04/2023]
Abstract
The myometrium undergoes structural and functional remodeling during pregnancy. We hypothesize that myometrial genomic elements alter correspondingly in preparation for parturition. Human myometrial tissues from nonpregnant (NP) and term pregnant (TP) human subjects were examined by RNAseq, ATACseq, and PGR ChIPseq assays to profile transcriptome, assessible genome, and PGR occupancy. NP and TP specimens exhibit 2890 differentially expressed genes, reflecting an increase of metabolic, inflammatory, and PDGF signaling, among others, in adaptation to pregnancy. At the epigenome level, patterns of accessible genome change between NP and TP myometrium, leading to the altered enrichment of binding motifs for hormone and muscle regulators such as the progesterone receptor (PGR), Krüppel-like factors, and MEF2A transcription factors. PGR genome occupancy exhibits a significant difference between the two stages of the myometrium, concomitant with distinct transcriptomic profiles including genes such as ENO1, LHDA, and PLCL1 in the glycolytic and calcium signaling pathways. Over-representation of SRF, MYOD, and STAT binding motifs in PGR occupying sites further suggests interactions between PGR and major muscle regulators for myometrial gene expression. In conclusion, changes in accessible genome and PGR occupancy are part of the myometrial remodeling process and may serve as mechanisms to formulate the state-specific transcriptome profiles.
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Affiliation(s)
- San-Pin Wu
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Matthew L Anderson
- Department of Obstetrics & Gynecology, University of South Florida Morsani College of Medicine and Moffitt Cancer Center, Tampa, FL
| | - Tianyuan Wang
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Lecong Zhou
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Olivia M Emery
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Xilong Li
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Francesco J DeMayo
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC
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Denda K, Ida K, Tanno M, Nakao-Wakabayashi K, Komada M, Hayashi N. Proteomic analysis of Nrk gene-disrupted placental tissue cells explains physiological significance of NRK. BMC Res Notes 2019; 12:785. [PMID: 31783915 PMCID: PMC6884884 DOI: 10.1186/s13104-019-4818-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 11/21/2019] [Indexed: 11/10/2022] Open
Abstract
Objective NRK is a unique X chromosome-linked protein kinase expressed predominantly in placenta. The gene knockout causes placental overgrowth and delayed labor of Nrk-null fetuses from dams in mouse. To clarify unknown mechanisms behind the Nrk-null phenotypes, protein expression profiles were analyzed in the Nrk-null placenta using a high-performance two-dimensional electrophoresis methodology. Results Among around 1800 spots detected, we characterized a dozen protein spots whose expression levels were significantly altered in the Nrk-null placenta compared to wild-type. Analyzing these data sets is expected to reflect the difference physiologically in the presence or absence of NRK, facilitating the development of therapeutic strategies.
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Affiliation(s)
- Kimitoshi Denda
- School of Life Science and Technology, Tokyo Institute of Technology, (M6-6) 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kanako Ida
- School of Life Science and Technology, Tokyo Institute of Technology, (M6-6) 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Masataka Tanno
- Department of Pathology, Tokyo Nishi Tokushukai Hospital, Akishima, Japan
| | - Kanako Nakao-Wakabayashi
- School of Life Science and Technology, Tokyo Institute of Technology, (M6-6) 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Masayuki Komada
- Cell Biology Unit, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Nobuhiro Hayashi
- School of Life Science and Technology, Tokyo Institute of Technology, (M6-6) 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
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27
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Oral cholecalciferol supplementation alleviates lipopolysaccharide-induced preterm delivery partially through regulating placental steroid hormones and prostaglandins in mice. Int Immunopharmacol 2019; 69:235-244. [DOI: 10.1016/j.intimp.2019.01.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/24/2019] [Accepted: 01/30/2019] [Indexed: 12/19/2022]
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28
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Hallman M, Haapalainen A, Huusko JM, Karjalainen MK, Zhang G, Muglia LJ, Rämet M. Spontaneous premature birth as a target of genomic research. Pediatr Res 2019; 85:422-431. [PMID: 30353040 DOI: 10.1038/s41390-018-0180-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/20/2018] [Accepted: 08/23/2018] [Indexed: 01/23/2023]
Abstract
Spontaneous preterm birth is a serious and common pregnancy complication associated with hormonal dysregulation, infection, inflammation, immunity, rupture of fetal membranes, stress, bleeding, and uterine distention. Heredity is 25-40% and mostly involves the maternal genome, with contribution of the fetal genome. Significant discoveries of candidate genes by genome-wide studies and confirmation in independent replicate populations serve as signposts for further research. The main task is to define the candidate genes, their roles, localization, regulation, and the associated pathways that influence the onset of human labor. Genomic research has identified some candidate genes that involve growth, differentiation, endocrine function, immunity, and other defense functions. For example, selenocysteine-specific elongation factor (EEFSEC) influences synthesis of selenoproteins. WNT4 regulates decidualization, while a heat-shock protein family A (HSP70) member 1 like, HSPAIL, influences expression of glucocorticoid receptor and WNT4. Programming of pregnancy duration starts before pregnancy and during placentation. Future goals are to understand the interactive regulation of the pathways in order to define the clocks that influence the risk of prematurity and the duration of pregnancy. Premature birth has a great impact on the duration and the quality of life. Intensification of focused research on causes, prediction and prevention of prematurity is justified.
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Affiliation(s)
- Mikko Hallman
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland.
| | - Antti Haapalainen
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Johanna M Huusko
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, March of Dimes Prematurity Research Center Ohio Collaborative, Cincinnati, OH, USA
| | - Minna K Karjalainen
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Ge Zhang
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, March of Dimes Prematurity Research Center Ohio Collaborative, Cincinnati, OH, USA
| | - Louis J Muglia
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, March of Dimes Prematurity Research Center Ohio Collaborative, Cincinnati, OH, USA
| | - Mika Rämet
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
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29
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Mendelson CR, Gao L, Montalbano AP. Multifactorial Regulation of Myometrial Contractility During Pregnancy and Parturition. Front Endocrinol (Lausanne) 2019; 10:714. [PMID: 31708868 PMCID: PMC6823183 DOI: 10.3389/fendo.2019.00714] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/03/2019] [Indexed: 12/30/2022] Open
Abstract
The steroid hormones progesterone (P4) and estradiol-17β (E2), produced by the placenta in humans and the ovaries in rodents, serve crucial roles in the maintenance of pregnancy, and the initiation of parturition. Because of their critical importance for species survival, the mechanisms whereby P4 and its nuclear receptor (PR) maintain myometrial quiescence during pregnancy, and for the decline in P4/PR and increase in E2/estrogen receptor (ER) function leading to parturition, are multifaceted, cooperative, and redundant. These actions of P4/PR include: (1) PR interaction with proinflammatory transcription factors, nuclear factor κB (NF-κB), and activating protein 1 (AP-1) bound to promoters of proinflammatory and contractile/contraction-associated protein (CAP) genes and recruitment of corepressors to inhibit NF-κB and AP-1 activation of gene expression; (2) upregulation of inhibitors of proinflammatory transcription factor activation (IκBα, MKP-1); (3) induction of transcriptional repressors of CAP genes (e.g., ZEB1). In rodents and most other mammals, circulating maternal P4 levels remain elevated throughout most of pregnancy and decline precipitously near term. By contrast, in humans, circulating P4 levels and myometrial PR levels remain elevated throughout pregnancy and into labor. However, even in rodents, wherein P4 levels decline near term, P4 levels remain higher than the Kd for PR binding. Thus, parturition is initiated in all species by a series of molecular events that antagonize the P4/PR maintenance of uterine quiescence. These events include: direct interaction of inflammatory transcription factors (e.g., NF-κB, AP-1) with PR; increased expression of P4 metabolizing enzymes; increased expression of truncated/inhibitory PR isoforms; altered expression of PR coactivators and corepressors. This article will review various mechanisms whereby P4 acting through PR isoforms maintains myometrial quiescence during pregnancy as well as those that underlie the decline in PR function leading to labor. The roles of P4- and E2-regulated miRNAs in the regulation and integration of these mechanisms will also be considered.
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30
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Gilman-Sachs A, Dambaeva S, Salazar Garcia MD, Hussein Y, Kwak-Kim J, Beaman K. Inflammation induced preterm labor and birth. J Reprod Immunol 2018; 129:53-58. [PMID: 30025845 DOI: 10.1016/j.jri.2018.06.029] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 01/23/2023]
Abstract
Preterm birth which occurs before 37 weeks gestation is one of the most common obstetrical complication in humans. After many studies, it appears that "not one answer fits all" regarding the risk factors, causes and the treatments for this syndrome. However, it is becoming more evident that one of the major risk factors is inflammation and/or infection in the fetoplacental unit. In animal models (usually consisting of mice injected with lipopolysaccharide at 14 days of gestation), IL-22 and IL-6 have been identified as factors related to preterm birth. There are some clinical tests available to determine the risk for preterm labor and delivery, which can be identified before, during early, or at mid-gestation. However, treatment of preterm birth with antibiotics so far has not been "curable" and studies using anti-inflammatory treatments are not readily available. More studies regarding causes and treatments for preterm labor and delivery in humans are necessary to prevent neonatal deaths and/or developmental abnormalities associated with this common syndrome.
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Affiliation(s)
- Alice Gilman-Sachs
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, United States.
| | - Svetlana Dambaeva
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, United States
| | - Maria D Salazar Garcia
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medicine School, Rosalind Franklin University of Medicine and Science, Vernon Hills, IL 60061, United States
| | - Youssef Hussein
- Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medicine School, Rosalind Franklin University of Medicine and Science, Vernon Hills, IL 60061, United States
| | - Joanne Kwak-Kim
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, United States; Reproductive Medicine and Immunology, Department of Obstetrics and Gynecology, Chicago Medicine School, Rosalind Franklin University of Medicine and Science, Vernon Hills, IL 60061, United States
| | - Kenneth Beaman
- Clinical Immunology Laboratory, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, United States
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31
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Lamb CA, Fabris VT, Jacobsen B, Molinolo AA, Lanari C. Biological and clinical impact of imbalanced progesterone receptor isoform ratios in breast cancer. Endocr Relat Cancer 2018; 25:ERC-18-0179. [PMID: 29991638 DOI: 10.1530/erc-18-0179] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 12/17/2022]
Abstract
There is a consensus that progestins and thus their cognate receptor molecules, the progesterone receptors (PR), are essential in the development of the adult mammary gland and regulators of proliferation and lactation. However, a role for natural progestins in breast carcinogenesis remains poorly understood. A hint to that possible role came from studies in which the synthetic progestin medroxyprogesterone acetate was associated with an increased breast cancer risk in women under hormone replacement therapy. However, progestins have been also used for breast cancer treatment and to inhibit the growth of several experimental breast cancer models. More recently, PR have been shown to be regulators of estrogen receptor signaling. With all this information, the question is how can we target PR, and if so, which patients may benefit from such an approach? PR are not single unique molecules. Two main PR isoforms have been characterized, PRA and PRB, that exert different functions and the relative abundance of one isoform respect to the other determines the response of PR agonists and antagonists. Immunohistochemistry with standard antibodies against PR do not discriminate between isoforms. In this review, we summarize the current knowledge on the expression of both PR isoforms in mammary glands, in experimental models of breast cancer and in breast cancer patients, to better understand how the PRA/PRB ratio can be exploited therapeutically to design personalized therapeutic strategies.
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Affiliation(s)
- Caroline A Lamb
- C Lamb, Laboratorio de Carcinogénesis Hormonal, Instituto de Biología y Medicina Experimental, Buenos Aires, Argentina
| | - Victoria T Fabris
- V Fabris, Laboratorio de Carcinogénesis Hormonal, Instituto de Biología y Medicina Experimental, Buenos Aires, Argentina
| | - Britta Jacobsen
- B Jacobsen, Department of Pathology, University of Colorado at Denver - Anschutz Medical Campus, Aurora, United States
| | - Alfredo A Molinolo
- A Molinolo, Biorepository and Tissue Technology Shared Resource, University of California San Diego Moores Cancer Center, La Jolla, United States
| | - Claudia Lanari
- C Lanari, Laboratorio de Carcinogénesis Hormonal, Instituto de Biología y Medicina Experimental, Buenos Aires, Argentina
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Wu SP, Li R, DeMayo FJ. Progesterone Receptor Regulation of Uterine Adaptation for Pregnancy. Trends Endocrinol Metab 2018; 29:481-491. [PMID: 29705365 PMCID: PMC6004243 DOI: 10.1016/j.tem.2018.04.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/01/2018] [Accepted: 04/03/2018] [Indexed: 01/01/2023]
Abstract
Progesterone acts through the progesterone receptor to direct physiological adaption of the uterus in preparation and completion of pregnancy. Genome-wide transcriptome and cistrome analyses have uncovered new members and novel modifiers of the progesterone signaling pathway. Genetically engineered mice allow functional assessment of newly identified genes in vivo and provide insights on the impact of progesterone receptor-dependent molecular mechanisms on pregnancy at the organ system level. Progesterone receptor isoforms collectively mediate progesterone signaling via their distinct and common downstream target genes, which makes the stoichiometry of isoforms relevant in modifying the progesterone activity. This review discusses recent advances on the discovery of the progesterone receptor network, with special focus on the endometrium at early pregnancy and myometrium during parturition.
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Affiliation(s)
- San-Pin Wu
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC 27709, USA
| | - Rong Li
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC 27709, USA
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC 27709, USA.
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Zowalaty AEE, Ye X. Seipin deficiency leads to defective parturition in mice. Biol Reprod 2018; 97:378-386. [PMID: 29088395 DOI: 10.1093/biolre/iox088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 08/10/2017] [Indexed: 01/28/2023] Open
Abstract
Seipin is an integral endoplasmic reticulum membrane protein encoded by Berardinelli-Seip congenital lipodystrophy type 2 (BSCL2/Bscl2) gene. Seipin deficiency results in lipodystrophy, diabetes, muscle hypertrophy, and male infertility in both human and mouse. Seipin function in female reproduction is unknown. Bscl2-/- dams had normal embryo implantation and body weight gain during pregnancy but reduced delivery rates from 2nd to 4th pregnancies and reduced numbers of pups delivered from 1st to 4th pregnancies. Characterization of first pregnancy revealed increased gestation period and parturition problems, including uterine prolapse, difficulty in delivery, undelivered fetuses, and undelivered tissues in Bscl2-/- females. Bscl2-/- uterine weight was comparable to control at 3 weeks old but significantly increased with myometrial hypertrophy at 10 months old. In situ hybridization revealed relatively low level of Bscl2 mRNA expression in myometrium throughout pregnancy and postpartum but high level of expression in uterine luminal epithelium, suggesting that systemic effect (e.g. elevated glucose and insulin levels) rather than local seipin-deficiency in myometrium might be a main contributing factor to myometrial hypertrophy. On near-term gestation day 18.5 (D18.5), Bscl2-/- females had normal levels of serum progesterone and 17β-estradiol, indicating functional ovary and placenta. Proliferating Cell Nuclear Antigen (PCNA) staining showed minimal myometrial cell proliferation in both D18.5 Bscl2+/+ and Bscl2-/- uteri. There was strong LC3 immunostaining in Bscl2+/+ and Bscl2-/- peripartum myometrium and increased LC3 staining in Bscl2-/- peripartum uterine luminal epithelium, suggesting a potential role of seipin in regulating autophagy in uterine luminal epithelium but not myometrium. This study demonstrates an association of seipin with myometrium and parturition.
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Affiliation(s)
- Ahmed E El Zowalaty
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America.,Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia, United States of America
| | - Xiaoqin Ye
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America.,Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia, United States of America
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Ge J, Han T, Li X, Shan L, Zhang J, Hong Y, Xia Y, Wang J, Hou M. S-adenosyl methionine regulates calcium channels and inhibits uterine smooth muscle contraction in rats with infectious premature delivery through the transient receptor protein 3/protein kinase Cβ/C-kinase-activated protein phosphatase-1 inhibitor of 17 kDa signaling pathway. Exp Ther Med 2018; 16:103-112. [PMID: 29896230 PMCID: PMC5995051 DOI: 10.3892/etm.2018.6164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 03/09/2018] [Indexed: 12/28/2022] Open
Abstract
The aim of the present study was to investigate the effects of S-adenosyl methionine (SAMe) on infectious premature inflammatory factors and uterine contraction, and to further explore its mechanism of action via the transient receptor protein 3 (TRPC3)/protein kinase Cβ (PKCβ)/C-kinase-activated protein phosphatase-1 inhibitor of 17 kDa (CPI-17) signaling pathway, following intervention by a TRPC3 inhibitor. A rat model of premature delivery induced by lipopolysaccharide (LPS) was established. Following treatment with SAMe and inhibiting TRPC3 expression, rat serum and uterus were isolated. Hematoxylin and eosin staining was used to observe the histopathological changes in the uterus. Uterine muscle strips in vitro were selected to measure the changes in muscle tension. ELISA was utilized to measure the changes in serum inflammatory factor and oxidative stress indexes. Immunohistochemistry, western blot assay and reverse transcription-quantitative polymerase chain reaction were applied to detect calcium channel protein expression in the uterus. Western blot analysis was employed to measure the expression of TRPC3/PKCβ/CPI-17 signaling pathway-related proteins. TRPC3 was highly expressed in the uterus of rat models of premature delivery induced by LPS. Following treatment with SAMe, inflammatory cell infiltration markedly reduced in the uterus and the tension of in vitro uterine muscle strips significantly decreased. SAMe treatment suppressed inflammatory reaction and oxidative stress, and diminished L-type and T-type calcium channel protein expression. TRPC3/PKCβ/CPI-17 signaling pathway-related protein expression was also reduced. When TRPC3 expression was suppressed, the effects of SAMe against inflammation and oxidative stress were diminished. TRPC3/PKCβ/CPI-17 signaling pathway-related protein expression significantly increased. SAMe was able to reduce inflammatory reaction and oxidative stress in the uterus of rat model of infectious premature delivery induced by LPS, prolong delivery time, reduce the mortality rate of offspring rats, and serve a therapeutic role. This effect is likely achieved via the regulation of uterine contractions and childbirth through the TRPC3/PKCβ/CPI-17 signaling pathway.
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Affiliation(s)
- Jing Ge
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Tao Han
- Department of Oncology, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Xiaoqiu Li
- Department of Neurology, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Lili Shan
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Jinhuan Zhang
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Yan Hong
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Yanqiu Xia
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Jun Wang
- Department of Maternity, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
| | - Mingxiao Hou
- Department of Cardiothoracic Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110016, P.R. China
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S-Nitrosoglutathione Reductase Underlies the Dysfunctional Relaxation to Nitric Oxide in Preterm Labor. Sci Rep 2018; 8:5614. [PMID: 29618799 PMCID: PMC5884813 DOI: 10.1038/s41598-018-23371-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/06/2018] [Indexed: 12/11/2022] Open
Abstract
Tocolytics show limited efficacy to prevent preterm delivery. In uterine smooth muscle cGMP accumulation following addition of nitric oxide (NO) has little effect on relaxation suggesting a role for protein S-nitrosation. In human myometrial tissues from women in labor at term (TL), or spontaneously in labor preterm (sPTL), direct stimulation of soluble guanylyl cyclase (sGC) fails to relax myometrium, while the same treatment relaxes vascular smooth muscle completely. Unlike term myometrium, effects of NO are not only blunted in sPTL, but global protein S-nitrosation is also diminished, suggesting a dysfunctional response to NO-mediated protein S-nitrosation. Examination of the enzymatic regulator of endogenous S-nitrosoglutathione availability, S-nitrosoglutathione reductase, reveals increased expression of the reductase in preterm myometrium associated with decreased total protein S-nitrosation. Blockade of S-nitrosoglutathione reductase relaxes sPTL tissue. Addition of NO donor to the actin motility assay attenuates force. Failure of sGC activation to mediate relaxation in sPTL tissues, together with the ability of NO to relax TL, but not sPTL myometrium, suggests a unique pathway for NO-mediated relaxation in myometrium. Our results suggest that examining the action of S-nitrosation on critical contraction associated proteins central to the regulation of uterine smooth muscle contraction can reveal new tocolytic targets.
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Abstract
The "ovarian cycle" is an exquisite and dynamic endocrine system that includes ovarian events, hypothalamic-pituitary interactions, uterine endometrial and myometrial changes during implantation and pregnancy, cervical alterations in structure, and breast development. The ovarian cycle and the steroid hormones produced by the ovary also impact epithelial cancer development in the ovary, uterus, cervix, and breast. This chapter provides a personal view of recent developments that occur in this complex endocrine environment.
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Affiliation(s)
- JoAnne S Richards
- Baylor College of Medicine, Houston, TX, United States; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States; Center for Reproductive Medicine, Baylor College of Medicine, Houston, TX, United States.
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Legacki EL, Corbin CJ, Ball BA, Wynn M, Loux S, Stanley SD, Conley AJ. Progestin withdrawal at parturition in the mare. Reproduction 2017; 152:323-31. [PMID: 27568209 DOI: 10.1530/rep-16-0227] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 07/18/2016] [Indexed: 11/08/2022]
Abstract
Mammalian pregnancies need progestogenic support and birth requires progestin withdrawal. The absence of progesterone in pregnant mares, and the progestogenic bioactivity of 5α-dihydroprogesterone (DHP), led us to reexamine progestin withdrawal at foaling. Systemic pregnane concentrations (DHP, allopregnanolone, pregnenolone, 5α-pregnane-3β, 20α-diol (3β,20αDHP), 20α-hydroxy-5α-dihydroprogesterone (20αDHP)) and progesterone) were monitored in mares for 10days before foaling (n=7) by liquid chromatography-mass spectrometry. The biopotency of dominant metabolites was assessed using luciferase reporter assays. Stable transfected Chinese hamster ovarian cells expressing the equine progesterone receptor (ePGR) were transfected with an MMTV-luciferase expression plasmid responsive to steroid agonists. Cells were incubated with increasing concentrations (0-100nM) of progesterone, 20αDHP and 3α,20βDHP. The concentrations of circulating pregnanes in periparturient mares were (highest to lowest) 3α,20βDHP and 20αDHP (800-400ng/mL respectively), DHP and allopregnanolone (90 and 30ng/mL respectively), and pregnenolone and progesterone (4-2ng/mL). Concentrations of all measured pregnanes declined on average by 50% from prepartum peaks to the day before foaling. Maximum activation of the ePGR by progesterone occurred at 30nM; 20αDHP and 3α,20βDHP were significantly less biopotent. At prepartum concentrations, both 20αDHP and 3α,20βDHP exhibited significant ePGR activation. Progestogenic support of pregnancy declines from 3 to 5days before foaling. Prepartum peak concentrations indicate that DHP is the major progestin, but other pregnanes like 20αDHP are present in sufficient concentrations to play a physiological role in the absence of DHP. The authors conclude that progestin withdrawal associated with parturition in mares involves cessation of pregnane synthesis by the placenta.
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Affiliation(s)
- Erin L Legacki
- Department of Population Health and ReproductionSchool of Veterinary Medicine, University of California, Davis, California, USA
| | - C J Corbin
- Department of Population Health and ReproductionSchool of Veterinary Medicine, University of California, Davis, California, USA
| | - B A Ball
- Gluck Equine Research CenterDepartment of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - M Wynn
- Gluck Equine Research CenterDepartment of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - S Loux
- Gluck Equine Research CenterDepartment of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - S D Stanley
- Department of Molecular BiosciencesSchool of Veterinary Medicine, University of California, Davis, California, USA
| | - A J Conley
- Department of Population Health and ReproductionSchool of Veterinary Medicine, University of California, Davis, California, USA
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Abstract
Senescence contributes to the local and systemic aging of tissues and has been associated with age-related diseases. Recently, roles for this process during pregnancy have come to light, the dysregulation of which has been associated with adverse pregnancy outcomes such as preterm birth. Here, we summarize recent advances that support a role for senescence in birth timing and propose new aspects of study in this emerging field.
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Affiliation(s)
- Jeeyeon M Cha
- a Division of Diabetes, Endocrinology and Metabolism , Vanderbilt University Medical Center , Nashville , TN , USA.,b Department of Medicine , Vanderbilt University Medical Center , Nashville , TN , USA
| | - David M Aronoff
- b Department of Medicine , Vanderbilt University Medical Center , Nashville , TN , USA.,c Division of Infectious Diseases , Vanderbilt University Medical Center , Nashville , TN , USA.,d Department of Pathology, Microbiology and Immunology , Vanderbilt University Medical Center , Nashville , TN , USA
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Wu SP, DeMayo FJ. Progesterone Receptor Signaling in Uterine Myometrial Physiology and Preterm Birth. Curr Top Dev Biol 2017; 125:171-190. [PMID: 28527571 DOI: 10.1016/bs.ctdb.2017.03.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Myometrium holds the structural integrity for the uterus and generates force for parturition with its primary component, the smooth muscle cells. The progesterone receptor mediates progesterone-dependent signaling and connects to a network of pathways for regulation of contractility and inflammatory responses in myometrium. Dysfunctional progesterone signaling has been linked to pregnancy complications including preterm birth. In the present review, we summarize recent findings on modifiers and effectors of the progesterone receptor signaling. Discussions include novel conceptual discoveries and new development in legacy pathways such as the signal transducers NF-κB, ZEB, microRNA, and the unfolded protein response pathways. We also discuss the impact of progesterone receptor isoform composition and ligand accessibility in modification of the progesterone receptor genomic actions.
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Affiliation(s)
- San-Pin Wu
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, United States
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, United States.
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Dominguez-Lopez P, Diaz-Cueto L, Aguilar-Rojas A, Arechavaleta-Velasco F. Synergistic effect of DDT and its metabolites in lipopolysaccharide-mediated TNF-α production is inhibited by progesterone in peripheral blood mononuclear cells. J Biochem Mol Toxicol 2017; 31. [PMID: 28238206 DOI: 10.1002/jbt.21907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/19/2017] [Accepted: 01/26/2017] [Indexed: 12/12/2022]
Abstract
Increased TNF-α levels have been associated with adverse pregnancy outcomes. Lipopolysaccharide (LPS), 1,1,1-trichloro-2,2-bis-(chlorophenyl)ethane (DDT), 1,1-bis-(chlorophenyl)-2,2-dichloroethene (DDE), and 1,1-dichloro-2,2-bis(chlorophenyl)ethane (DDD) induce TNF-α release in peripheral blood mononuclear cells (PBMC). Conversely, progesterone (P4) inhibits TNF-α secretion. Pregnant women in malaria endemic areas may be co-exposure to these compounds. Thus, this study was to investigate the synergistic effect of LPS and these pesticides in PBMC and to assess P4 influence on this synergy. Cultured PBMC were exposed to each pesticide in the presence of LPS, P4, or their combination. TNF-α was measured by ELISA. All pesticides enhanced TNF-α synthesis in PBMC. Co-exposure with LPS synergizes TNF-α production, which is blocked by progesterone. These results indicate that these organochlorines act synergistically with LPS to induce TNF-α secretion in PBMC. This effect is blocked by P4.
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Affiliation(s)
- Pablo Dominguez-Lopez
- Unidad de Investigación Médica en Medicina Reproductiva, UMAE Hospital de Gineco Obstetricia No. 4 Luis Castelazo Ayala, Instituto Mexicano del Seguro Social, México D. F., México
| | - Laura Diaz-Cueto
- Unidad de Investigación Médica en Medicina Reproductiva, UMAE Hospital de Gineco Obstetricia No. 4 Luis Castelazo Ayala, Instituto Mexicano del Seguro Social, México D. F., México
| | - Arturo Aguilar-Rojas
- Unidad de Investigación Médica en Medicina Reproductiva, UMAE Hospital de Gineco Obstetricia No. 4 Luis Castelazo Ayala, Instituto Mexicano del Seguro Social, México D. F., México
| | - Fabian Arechavaleta-Velasco
- Unidad de Investigación Médica en Medicina Reproductiva, UMAE Hospital de Gineco Obstetricia No. 4 Luis Castelazo Ayala, Instituto Mexicano del Seguro Social, México D. F., México
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Hajagos-Toth J, Bota J, Ducza E, Csanyi A, Tiszai Z, Borsodi A, Samavati R, Benyhe S, Gaspar R. The effects of estrogen on the α2-adrenergic receptor subtypes in rat uterine function in late pregnancy in vitro. Croat Med J 2017; 57:100-9. [PMID: 27106352 PMCID: PMC4856191 DOI: 10.3325/cmj.2016.57.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM To assess the effect of 17β-estradiol pretreatment on the function and expression of α2- adrenergic receptors (ARs) subtypes in late pregnancy in rats. METHODS Sprague-Dawley rats (n=37) were treated with 17β-estradiol for 4 days starting from the 18th day of pregnancy. The myometrial expression of the α2-AR subtypes was determined by real time polymerase chain reaction and Western blot analysis. In vitro contractions were stimulated with (-)-noradrenaline, and its effect was modified with the selective antagonists BRL 44408 (α2A), ARC 239 (α2B/C), and spiroxatrine (α2A). The cyclic adenosine monophosphate (cAMP) accumulation was also measured. The activated G-protein level was investigated by guanosine 5'-O-[gamma-thio]triphosphate (GTPγS) binding assay. RESULTS 17β-estradiol pretreatment decreased the contractile effect of (-)-noradrenaline via the α2-ARs, and abolished the contractile effect via the α2B-ARs. All the α2-AR subtypes' mRNA was significantly decreased. 17β-estradiol pretreatment significantly increased the myometrial cAMP level in the presence of BRL 44408 (P=0.001), ARC 239 (P=0.007), and spiroxatrine (P=0.045), but did not modify it in the presence of spiroxatrine + BRL 44408 combination (P=0.073). It also inhibited the G-protein-activating effect of (-)-noradrenaline by 25% in the presence of BRL 44408 + spiroxatrine combination. CONCLUSIONS The expression of the α2-AR subtypes is sensitive to 17β-estradiol, which decreases the contractile response of (-)-noradrenaline via the α2B-AR subtype, and might cause changes in G-protein signaling pathway. Estrogen dysregulation may be responsible for preterm labor or uterine inertia via the α2-ARs.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Robert Gaspar
- Robert Gaspar, Szeged, H-6701, P.O. Box 121, Hungary,
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Yulia A, Singh N, Lei K, Sooranna SR, Johnson MR. Cyclic AMP Effectors Regulate Myometrial Oxytocin Receptor Expression. Endocrinology 2016; 157:4411-4422. [PMID: 27673556 DOI: 10.1210/en.2016-1514] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The factors that initiate human labor are poorly understood. We have tested the hypothesis that a decline in cAMP/protein kinase A (PKA) function leads to the onset of labor. Initially, we identified myometrial cAMP/PKA-responsive genes (six up-regulated and five down-regulated genes) and assessed their expression in myometrial samples taken from different stages of pregnancy and labor. We found that the oxytocin receptor (OTR) was one of the cAMP-repressed genes, and, given the importance of OTR in the labor process, we studied the mechanisms involved in greater detail using small interfering RNA, chemical agonists, and antagonists of the cAMP effectors. We found that cAMP-repressed genes, including OTR, increased with the onset of labor. Our in vitro studies showed that cAMP acting via PKA reduced OTR expression but that in the absence of PKA, cAMP acts via exchange protein activated by cAMP (EPAC) to increase OTR expression. In early labor myometrial samples, PKA levels and activity declined and Epac1 levels increased, perhaps accounting for the increase in myometrial OTR mRNA and protein levels at this time. In vitro exposure of myometrial cells to stretch and IL-1β increased OTR levels and reduced basal and forskolin-stimulated cAMP and PKA activity, as judged by phospho-cAMP response element-binding protein levels, but neither stretch nor IL-1β had any effect on PKA or EPAC1 levels. In summary, there is a reduction in the activity of the cAMP/PKA pathway with the onset of human labor potentially playing a critical role in regulating OTR expression and the transition from myometrial quiescence to activation.
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Affiliation(s)
- Angela Yulia
- Chelsea and Westminster Hospital (A.Y., N.S., K.L., S.R.S., M.R.J.), London SW10 9NH, United Kingdom; and Institute of Reproductive and Developmental Biology (A.Y., N.S., K.L., S.R.S., M.R.J.), London W12 0NN, United Kingdom
| | - Natasha Singh
- Chelsea and Westminster Hospital (A.Y., N.S., K.L., S.R.S., M.R.J.), London SW10 9NH, United Kingdom; and Institute of Reproductive and Developmental Biology (A.Y., N.S., K.L., S.R.S., M.R.J.), London W12 0NN, United Kingdom
| | - Kaiyu Lei
- Chelsea and Westminster Hospital (A.Y., N.S., K.L., S.R.S., M.R.J.), London SW10 9NH, United Kingdom; and Institute of Reproductive and Developmental Biology (A.Y., N.S., K.L., S.R.S., M.R.J.), London W12 0NN, United Kingdom
| | - Suren R Sooranna
- Chelsea and Westminster Hospital (A.Y., N.S., K.L., S.R.S., M.R.J.), London SW10 9NH, United Kingdom; and Institute of Reproductive and Developmental Biology (A.Y., N.S., K.L., S.R.S., M.R.J.), London W12 0NN, United Kingdom
| | - Mark R Johnson
- Chelsea and Westminster Hospital (A.Y., N.S., K.L., S.R.S., M.R.J.), London SW10 9NH, United Kingdom; and Institute of Reproductive and Developmental Biology (A.Y., N.S., K.L., S.R.S., M.R.J.), London W12 0NN, United Kingdom
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Gao L, Wang G, Liu WN, Kinser H, Franco HL, Mendelson CR. Reciprocal Feedback Between miR-181a and E 2/ERα in Myometrium Enhances Inflammation Leading to Labor. J Clin Endocrinol Metab 2016; 101:3646-3656. [PMID: 27459534 PMCID: PMC5052345 DOI: 10.1210/jc.2016-2078] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
CONTEXT The initiation of term and preterm labor is associated with an up-regulated inflammatory response in myometrium; however, the underlying signaling pathways remain incompletely defined. OBJECTIVE To define the regulatory mechanisms that mediate the increased myometrial inflammatory response leading to labor, we investigated the roles of microRNAs (miRNA/miR). DESIGN AND SETTING Human myometrial tissues, isolated smooth muscle cells, and animal models were used to study miR-181a regulation of uterine inflammatory pathways and contractility. PATIENTS Myometrial tissues from 15 term pregnant women undergoing elective cesarean section (not in labor) and 10 term pregnant women undergoing emergency cesarean section (in labor) were used. RESULTS Expression of the highly conserved microRNA, miR-181a, was significantly decreased in mouse and human myometrium during late gestation. By contrast, the putative miR-181a targets, TNF-α, and estrogen receptor (ER)-α, and the validated target, c-Fos, key factors in the inflammatory response leading to parturition, were coordinately up-regulated. In studies using human myometrial cells, overexpression of miR-181a mimics repressed basal as well as IL-1β-induced TNF-α, C-C motif chemokine ligand 2 and 8 expression, whereas the expression of the antiinflammatory cytokine, IL-10, was increased. Overexpression of miR-181a dramatically inhibited both spontaneous and IL-1β-induced contraction of human myometrial cells. Notably, miR-181a directly targeted ERα and decreased its expression, whereas estradiol-17β reciprocally inhibited expression of mature miR-181a in myometrial cells. CONCLUSIONS Thus, increased estradiol-17β/ERα signaling in myometrium near term inhibits miR-181a, resulting in a further increase in ERα and proinflammatory signaling. This escalating feedback loop provides novel targets and therapeutic strategies for the prevention of preterm labor and its consequences.
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Affiliation(s)
- Lu Gao
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Gang Wang
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Wei-Na Liu
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Holly Kinser
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Hector L Franco
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Carole R Mendelson
- Department of Physiology (L.G., G.W., W.L.), Second Military Medical University, Shanghai 200433, People's Republic of China; Department of Biochemistry (L.G., H.K., C.R.M.) and Cecil H. and Ida Green Center for Reproductive Biology Sciences and Department of Obstetrics and Gynecology (C.R.M.), University of Texas Southwestern Medical Center, Dallas, Texas 75390
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Stilley JAW, Guan R, Santillan DA, Mitchell BF, Lamping KG, Segaloff DL. Differential Regulation of Human and Mouse Myometrial Contractile Activity by FSH as a Function of FSH Receptor Density. Biol Reprod 2016; 95:36. [PMID: 27335068 PMCID: PMC5029472 DOI: 10.1095/biolreprod.116.141648] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 06/15/2016] [Indexed: 01/05/2023] Open
Abstract
Previous studies from our laboratory revealed that the follicle-stimulating hormone receptor (FSHR) is expressed at low levels in nonpregnant human myometrium and that it is up-regulated in pregnant term nonlaboring myometrium; however, the physiological relevance of these findings was unknown. Herein, we examined signaling pathways stimulated by FSH in immortalized uterine myocytes expressing recombinant FSHR at different densities and showed that cAMP accumulation is stimulated in all cases but that inositol phosphate accumulation is stimulated only at high FSHR densities. Because an increase in cAMP quiets myometrial contractile activity but an increase in 1,4,5-triphosphoinositol stimulates contractile activity, we hypothesized that FSHR density dictates whether FSH quiets or stimulates myometrial contractility. Indeed, in human and mouse nonpregnant myometrium, which express low levels of FSHR, application of FSH resulted in a quieting of contractile activity. In contrast, in pregnant term nonlaboring myometrium, which expresses higher levels of FSHR, application of FSH resulted in increased contractile activity. Examination of pregnant mouse myometrium from different stages of gestation revealed that FSHR levels remained low throughout most of pregnancy. Accordingly, through mid-gestation, the application of FSH resulted in a quieting of contractile activity. At Pregnancy Day (PD) 16.5, FSHR was up-regulated, although not yet sufficiently to mediate stimulation of contractility in response to FSH. This outcome was not observed until PD 19.5, when FSHR was further up-regulated. Our studies describe a novel FSHR signaling pathway that regulates myometrial contractility, and suggest that myometrial FSHR levels dictate the quieting vs. stimulation of uterine contractility in response to FSH.
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Affiliation(s)
- Julie A W Stilley
- Department of Molecular Physiology and Biophysics, the University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Rongbin Guan
- Department of Molecular Physiology and Biophysics, the University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Donna A Santillan
- Department of Obstetrics and Gynecology, the University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Bryan F Mitchell
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada
| | - Kathryn G Lamping
- Departments of Internal Medicine and Pharmacology, the University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Deborah L Segaloff
- Department of Molecular Physiology and Biophysics, the University of Iowa Carver College of Medicine, Iowa City, Iowa
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Hajagos-Tóth J, Bóta J, Ducza E, Samavati R, Borsodi A, Benyhe S, Gáspár R. The effects of progesterone on the alpha2-adrenergic receptor subtypes in late-pregnant uterine contractions in vitro. Reprod Biol Endocrinol 2016; 14:33. [PMID: 27301276 PMCID: PMC4908715 DOI: 10.1186/s12958-016-0166-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/09/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The adrenergic system and progesterone play major roles in the control of the uterine function. Our aims were to clarify the changes in function and expression of the α2-adrenergic receptor (AR) subtypes after progesterone pretreatment in late pregnancy. METHODS Sprague Dawley rats from pregnancy day 15 were treated with progesterone for 7 days. The myometrial expressions of the α2-AR subtypes were determined by RT-PCR and Western blot analysis. In vitro contractions were stimulated with (-)-noradrenaline, and its effect was modified with the selective antagonists BRL 44408 (α2A), ARC 239 (α2B/C) and spiroxatrine (α2A). The accumulation of myometrial cAMP was also measured. The activated G-protein level was investigated via GTPγS binding assays. RESULTS Progesterone pretreatment decreased the contractile effect of (-)-noradrenaline through the α2-ARs. The most significant reduction was found through the α2B-ARs. The mRNA of all of the α2-AR subtypes was increased. Progesterone pretreatment increased the myometrial cAMP level in the presence of BRL 44408 (p < 0.001), spiroxatrine (p < 0.001) or the spiroxatrine + BRL 44408 combination (p < 0.05). Progesterone pretreatment increased the G-protein-activating effect of (-)-noradrenaline in the presence of the spiroxatrine + BRL 44408 combination. CONCLUSIONS The expression of the α2-AR subtypes is progesterone-sensitive. It decreases the contractile response of (-)-noradrenaline through the α2B-AR subtype, blocks the function of α2A-AR subtype and alters the G protein coupling of these receptors, promoting a Gs-dependent pathway. A combination of α2C-AR agonists and α2B-AR antagonists with progesterone could be considered for the treatment or prevention of preterm birth.
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Affiliation(s)
- Judit Hajagos-Tóth
- />Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, H-6701 P.O. Box 121, Hungary
| | - Judit Bóta
- />Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, H-6701 P.O. Box 121, Hungary
| | - Eszter Ducza
- />Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, H-6701 P.O. Box 121, Hungary
| | - Reza Samavati
- />Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt 62, Szeged, H-6726 Hungary
| | - Anna Borsodi
- />Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt 62, Szeged, H-6726 Hungary
| | - Sándor Benyhe
- />Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt 62, Szeged, H-6726 Hungary
| | - Róbert Gáspár
- />Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, H-6701 P.O. Box 121, Hungary
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