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Sousa LG, Alves P, Teixeira N, Correia-da-Silva G, Fonseca BM. Alterations in the pro-resolving lipid mediator machinery within first trimester maternal tissue: Implications in decidualization and miscarriage risk. Prostaglandins Leukot Essent Fatty Acids 2024; 201:102619. [PMID: 38788346 DOI: 10.1016/j.plefa.2024.102619] [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: 01/29/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024]
Abstract
A pivotal event in uterine receptivity and human reproduction is the differentiation of endometrial stromal cells into decidual cells, known as decidualization. Decidualization is interlinked with its inflammatory environment. Our study aimed to investigate the presence and role of pro-resolving lipid mediators in first trimester maternal tissue. We assessed the levels of LXA4 and RvD1, along with their metabolic LOX enzymes, in elective (control) and sporadic miscarriage samples. We investigated the effects of LXA4 and RvD1 on decidualization using primary endometrial stromal cells and the immortalized endometrial stromal St-T1b cell line. The upregulation of 12- and 15-LOX expression was observed in pregnancy tissue after sporadic miscarriage, suggesting an inflammatory imbalance. Furthermore, incubation with these lipid mediators led to a decrease in decidualization biomarkers PRL and IGFBP-1, accompanied by morphological changes indicative of aberrant differentiation. The expression of LOX enzymes in decidual natural killer cells suggests their involvement in regulating the inflammatory surroundings and the extent of decidualization.
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Affiliation(s)
- Luísa G Sousa
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal; i4HB-Institute for Health and Bioeconomy, Universidade do Porto, 4050-313 Porto, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - Patrícia Alves
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal; i4HB-Institute for Health and Bioeconomy, Universidade do Porto, 4050-313 Porto, Portugal
| | - Natércia Teixeira
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal; i4HB-Institute for Health and Bioeconomy, Universidade do Porto, 4050-313 Porto, Portugal
| | - Georgina Correia-da-Silva
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal; i4HB-Institute for Health and Bioeconomy, Universidade do Porto, 4050-313 Porto, Portugal
| | - Bruno M Fonseca
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal; i4HB-Institute for Health and Bioeconomy, Universidade do Porto, 4050-313 Porto, Portugal; Escola Superior de Saúde, Instituto Politécnico de Viana do Castelo (IPVC), 4900-347 Viana do Castelo, Portugal.
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Huang X, Liao J, Feng F, Chen S, Liao E, Li D, Dai X, Dong J, Shao Y. Combined Application of Exosomes and FPR2 Agonist LXA4 in Controlling Fetal Membrane Inflammation and Promoting Fetal Membrane Tissue Repair. Reprod Sci 2022; 30:1979-1993. [DOI: 10.1007/s43032-022-01148-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
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Yang Q, Li M, Zhao M, Lu F, Yu X, Li L, Gu Z, Deng Y, Guan R. Progesterone modulates CD4 + CD25 + FoxP3 + regulatory T Cells and TGF-β1 in the maternal-fetal interface of the late pregnant mouse. Am J Reprod Immunol 2022; 88:e13541. [PMID: 35338548 DOI: 10.1111/aji.13541] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/12/2022] [Accepted: 03/21/2022] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Progesterone supplementation is recommended to prevent spontaneous preterm birth (sPTB) in clinical practice. However, the exact mechanism is still unclear. This study aims to better understand the mechanisms that progesterone can prevent PTB. METHODS Late pregnant mice were given various doses of progesterone receptor antagonist mifepristone, and pregnancy outcomes were observed. Then, non-pregnant and pregnant mice were given a subcutaneous injection of 40 mg/kg progesterone and 5 mg/kg mifepristone, respectively. CD4+ CD25+ FoxP3+ Treg cells in peripheral blood and decidua basalis were detected by FACS. Expressions of FoxP3 and TGF-β1 in the decidua basalis were detected. RESULTS Mifepristone induced preterm birth, and an obvious dose-response was found. Proportions of CD4+ CD25+ FoxP3+ Treg cells in the peripheral blood of non-pregnant mice increased significantly after progesterone injection. CD4+ CD25+ FoxP3+ Treg cells in the peripheral blood of pregnant mice increased significantly compared with those of non-pregnant mice. In pregnant mice, mifepristone significantly decreased the proportions of CD4+ CD25+ FoxP3+ Treg cells in peripheral blood, and reduced proportions of Treg cells at the maternal-fetal interface and expressions of FoxP3 and TGF-β1 in the maternal-fetal interface. Total 40 mg/kg of progesterone did not increase CD4+ CD25+ FoxP3+ Treg in the peripheral blood of pregnant mice, but increased proportions of Treg cells at the maternal-fetal interface and up-regulated FoxP3 and TGF-β1 expressions in the maternal-fetal interface. CONCLUSION Progesterone promotes pregnancy immune homeostasis by up-regulating Treg cells and TGF-β1 expression in the maternal-fetal interface. It may be one of the mechanisms of progesterone in preventing sPTB.
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Affiliation(s)
- Qianqian Yang
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Meihui Li
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Ming Zhao
- Department of Neurology, Naval Specialty Medical Center, Naval Medical University, Shanghai, China
| | - Feifan Lu
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaomin Yu
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Li Li
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhongyi Gu
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yifang Deng
- Department of Pharmacology, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Rui Guan
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
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Han M, Lai S, Ge Y, Zhou X, Zhao J. Changes of Lipoxin A4 and the Anti-inflammatory Role During Parturition. Reprod Sci 2021; 29:1332-1342. [PMID: 34786659 DOI: 10.1007/s43032-021-00800-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 11/06/2021] [Indexed: 11/29/2022]
Abstract
Parturition is the physiological process of newborn birth; more and more evidences show that parturition is closely related to the occurrence and resolution of inflammation. However, the inflammatory media and the mechanism are not very clear during parturition. Here, we investigate the inflammatory event during human parturition and in mouse model. We found that the pro-inflammatory cytokines (IL-6, IL-8, and IL-1β) and cells (neutrophil and macrophage) are decreased in pregnant women in labor and in mouse labor model. Mechanistically, increased stress stimulates the high-level adrenaline production in labor. Then, adrenaline upregulates the expression of 12/15-LOX (lipoxygenase) to produce more lipoxin A4 (LXA4), which is an inflammation inhibitor. Thus, LXA4 promotes the elimination of inflammation during labor to protect the body from excessive inflammatory damages. In addition, using BOC-2, the inhibitor of LXA4 receptor could reboot the pro-inflammatory cytokines. Our study indicates that LXA4 is induced by adrenaline in labor and appropriate interference of this pathway may be a potential strategy to regulate the inflammatory process in parturition.
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Affiliation(s)
- Mei Han
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Shaoyang Lai
- The Department of Obstetrics & Gynecology, Tongji Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, 430030, Hubei Province, China
| | - Yimeng Ge
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, China
| | - Xuan Zhou
- The Department of Obstetrics & Gynecology, Tongji Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, 430030, Hubei Province, China
| | - Jie Zhao
- The Department of Obstetrics & Gynecology, Tongji Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, 430030, Hubei Province, China. .,Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, China. .,National Clinical Research Center for Obstetrics and Gynecology, Beijing, 100191, China. .,Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, 100191, China. .,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China.
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Shanmugalingam R, Wang X, Motum P, Fulcher I, Lee G, Kumar R, Hennessy A, Makris A. The 15-Epilipoxin-A4 Pathway with Prophylactic Aspirin in Preventing Preeclampsia: A Longitudinal Cohort Study. J Clin Endocrinol Metab 2020; 105:5905864. [PMID: 32930782 DOI: 10.1210/clinem/dgaa642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/11/2020] [Indexed: 01/08/2023]
Abstract
INTRODUCTION The benefit of aspirin in preventing preeclampsia is increasingly recognized; however, its mechanism of action remains unclear. Nonobstetric studies have described an anti-inflammatory effect of aspirin through the 15-epilipoxin-A4 pathway (aspirin-triggered lipoxin [ATL]). However, the anti-inflammatory mechanism of aspirin in the prevention of preeclampsia remains unknown. OBJECTIVE/HYPOTHESIS To examine (1) the difference in longitudinal endogenous lipoxin-A4 (En-Lipoxin-A4) concentration in low-risk (LR) and high-risk (HR) pregnancies, and (2) the effect of aspirin on endogenous ATL concentration and the associated effect on cytokine profile of HR women. METHODS Plasma from 220 HR women was collected at 12, 16, 20, 24, 28, 32, and 36 weeks of gestation. Adherence to aspirin was biochemically verified. Plasma En-Lipoxin-A4 and ATL concentrations were analyzed using liquid chromatography mass spectrometry, and cytokines, interleukin (IL)-10, tumor necrosis factor-α, interferon-γ, IL-8, and IL-1β, with the high-sensitivity multibead Luminex® assay. RESULTS HR women have up to 70% lower plasma concentration of En-Lipoxin-A4 (P < 0.001) than LR women. HR women with adequate aspirin adherence (HR-AA) (n = 82) had higher plasma concentration of ATL (P < .001), lower concentration of IL-8 from 16 to 36 weeks of gestation (P < .001), and increased IL-10 concentration from 16 to 28 weeks of gestation (P = .03) compared with high-risk women who were not on aspirin (HR-NA). HR-AA who did not develop preeclampsia had higher plasma En-lipoxin-A4 (P < .001), ATL (P = .02), and IL-10 concentrations (P < .001) with lower IL-8 concentration (P = .004) than HR women who developed preeclampsia. DISCUSSION Plasma concentration of En-Lipoxin-A4 is lower in HR women than in LR controls. Adequate adherence with aspirin results in an increase in ATL and IL-10 with reduced IL-8 plasma concentration. This study suggests a potential anti-inflammatory role of aspirin through the ATL pathway with prophylactic aspirin in HR pregnant women.
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Affiliation(s)
- Renuka Shanmugalingam
- Department of Renal Medicine, South Western Sydney Local Health District, NSW, Australia
- School of Medicine, Western Sydney University, NSW, Australia
- Women's Health Initiative Translational Unit (WHITU), Ingham Institute For Applied Medical Research and South Western Sydney Local Health District, NSW, Australia
- Vascular Immunology Research Group, Heart Research Institute (HRI), Sydney, NSW, Australia
| | - XiaoSuo Wang
- Bosch Mass Spectrometry Faculty, University of Sydney, NSW, Australia
- Freedman Foundation Metabolomics Facility, Innovation Centre, Victor Chang Cardiac Research Institute, NSW, Australia
| | - Penelope Motum
- Women's Health Initiative Translational Unit (WHITU), Ingham Institute For Applied Medical Research and South Western Sydney Local Health District, NSW, Australia
- Department of Haematology, South Western Sydney Local Health District, NSW, Australia
| | - Ian Fulcher
- Department of Obstetrics and Gynaecology, South Western Sydney Local Health District, NSW, Australia
| | - Gaksoo Lee
- Women's Health Initiative Translational Unit (WHITU), Ingham Institute For Applied Medical Research and South Western Sydney Local Health District, NSW, Australia
- Department of Obstetrics and Gynaecology, South Western Sydney Local Health District, NSW, Australia
| | - Roshika Kumar
- South Western Sydney Clinical School, University of New South Wales (UNSW), NSW, Australia
| | - Annemarie Hennessy
- Department of Renal Medicine, South Western Sydney Local Health District, NSW, Australia
- School of Medicine, Western Sydney University, NSW, Australia
- Women's Health Initiative Translational Unit (WHITU), Ingham Institute For Applied Medical Research and South Western Sydney Local Health District, NSW, Australia
- Vascular Immunology Research Group, Heart Research Institute (HRI), Sydney, NSW, Australia
| | - Angela Makris
- Department of Renal Medicine, South Western Sydney Local Health District, NSW, Australia
- School of Medicine, Western Sydney University, NSW, Australia
- Women's Health Initiative Translational Unit (WHITU), Ingham Institute For Applied Medical Research and South Western Sydney Local Health District, NSW, Australia
- Vascular Immunology Research Group, Heart Research Institute (HRI), Sydney, NSW, Australia
- South Western Sydney Clinical School, University of New South Wales (UNSW), NSW, Australia
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Liu H, Huang W, Chen L, Xu Q, Ye D, Zhang D. Glucocorticoid Exposure Induces Preeclampsia via DampeningLipoxin A 4, an Endogenous Anti-Inflammatory and Proresolving Mediator. Front Pharmacol 2020; 11:1131. [PMID: 32848749 PMCID: PMC7399346 DOI: 10.3389/fphar.2020.01131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/13/2020] [Indexed: 12/19/2022] Open
Abstract
The pathogenesis of preeclampsia (PE) involves several pathophysiological processes that may be affected by glucocorticoid (GC). We confirmed previously that GC exposure could result in PE, while PE is linked to a deficiency of lipoxin A4 (LXA4), an endogenous dual anti-inflammatory and proresolving mediator. The present study was to investigate whether GC exposure induces PE via dampening LXA4. In the study, cortisol levels of PE women were higher than those of normal pregnancies, LXA4 levels were downregulated in both PE patients and GC-mediated PE rats, and leukotriene B4 (LTB4) levels were upregulated in both PE patients and GC- mediated PE rats. Moreover, cortisol levels were negatively correlated to LXA4 levels, while positively correlated to LTB4 levels in PE patients. Mechanically, GC downregulated LXA4 via disturbing its biosynthetic enzymes, including ALOX15, ALOX5B and ALOX5, especially activating ALOX5, the key enzyme for class switching between LXA4 and LTB4. Importantly, replenishing LXA4 could ameliorate PE-related symptoms and placental oxidative stress in PE rat model induced by GC. Moreover, LXA4 could inhibit GC-mediated ALOX5 activation and LTB4 increase, and also suppress 11β-HSD2 expression and corticosterone upregulation. The protective actions of LXA4 might be explained by its roles in antagonizing the adverse effects of GC on trophoblast development. Together, our findings indicate that GC exposure could contribute to PE through dampening LXA4, and GC/LXA4 axis may represent a common pathway through which PE occurs.
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Affiliation(s)
- Haojing Liu
- Department of Science and Education, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Huang
- Department of Clinical Laboratory, Wuhan First Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liping Chen
- Department of Gynecology and Obstetrics, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiang Xu
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Duyun Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dongxin Zhang
- Department of Clinical Laboratory, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Szczuko M, Palma J, Kikut J, Komorniak N, Ziętek M. Changes of lipoxin levels during pregnancy and the monthly-cycle, condition the normal course of pregnancy or pathology. Inflamm Res 2020; 69:869-881. [PMID: 32488315 PMCID: PMC7395003 DOI: 10.1007/s00011-020-01358-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/09/2020] [Accepted: 05/13/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE AND DESIGN The purpose of the review was to gather information on the role and possibilities of using lipoxin in the treatment of infertility and maintaining a normal pregnancy. Ovulation, menstruation, embryo implantation, and childbirth are reactions representing short-term inflammatory events involving lipoxin activities. Lipoxin A4 (LXA4) is an arachidonic acid metabolite, and in cooperation with its positional isomer lipoxin B4 (LXB4), it is a major lipoxin in mammals. Biosynthesis process occurs in two stages: in the first step, the donor cell releases the eicosanoid intermediate; secondarily, the acceptor cell gets and converts the intermediate product into LXA4 (leukocyte/platelet interaction). RESULTS Generating lipoxin synthesis may also be triggered by salicylic acid, which acetylates cyclooxygenase-2. Lipoxin A4 and its analogues are considered as specialized pro-resolving mediators. LXA4 is an important component for a proper menstrual cycle, embryo implantation, pregnancy, and delivery. Its level in the luteal phase is high, while in the follicular phase, it decreases, which coincides with an increase in estradiol concentration with which it competes for the receptor. LXA4 inhibits the progression of endometriosis. However, during the peri-implantation period, before pregnancy is confirmed clinically, high levels of LXA4 can contribute to early pregnancy loss and may cause miscarriage. After implantation, insufficient LXA4 levels contribute to incorrect maternal vessel remodeling; decreased, shallow trophoblastic invasion; and the immuno-energetic abnormality of the placenta, which negatively affects fetal growth and the maintenance of pregnancy. Moreover, the level of LXA4 increases in the final stages of pregnancy, allowing vessel remodeling and placental separation. METHODS The review evaluates the literature published in the PubMed and Embase database up to 31 December 2019. The passwords were checked on terms: lipoxin and pregnancy with combined endometriosis, menstrual cycle, implantation, pre-eclampsia, fetal growth restriction, and preterm labor. CONCLUSIONS Although no human studies have been performed so far, the cell and animal model study results suggest that LXA4 will be used in obstetrics and gynecology soon.
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Affiliation(s)
- Małgorzata Szczuko
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University, Szczecin, Poland.
| | - Joanna Palma
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University, Szczecin, Poland
| | - Justyna Kikut
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University, Szczecin, Poland
| | - Natalia Komorniak
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University, Szczecin, Poland
| | - Maciej Ziętek
- Department of Perinatology, Obstetrics and Gynecology, Pomeranian Medical University, Szczecin, Poland
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Positive Roles of Resveratrol in Early Development of Testicular Germ Cells against Maternal Restraint Stress in Mice. Animals (Basel) 2020; 10:ani10010122. [PMID: 31940890 PMCID: PMC7022814 DOI: 10.3390/ani10010122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 01/05/2023] Open
Abstract
Our present study was designed to evaluate the effects of resveratrol (RES) in Swiss mice by exposing them to prenatal stress. Twenty-four Swiss mice were divided into four groups: control (C), maternal restraint stress (MRS), maternal restraint stress + resveratrol (MRS + RES) 2 mg, and maternal restraint stress + resveratrol (MRS + RES) 20 mg. Dams were exposed to stress by restraint in plastic tubes for four hours a day from 12-18 days of gestation. The results showed that male pups of MRS were significantly decreased in the testis weight, anogenital distance, area of seminiferous tubules, diameter of seminiferous tubules, area of the lumen, diameter of the lumen, and epithelial height of seminiferous tubules. However, the anomalies of the reproductive tract produced under restraint stress were neutralized by the use of RES 2 mg/kg. A significant difference was observed between terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)- positive germ cells in MRS and MRS + RES 20 mg/kg groups, while it was non-significant between MRS + RES 2 mg/kg and C groups. Apart from these effects, blood glucose levels were increased in MRS and MRS + RES 20 mg/kg groups, while experimental animals of the MRS + RES 2 mg/kg group significantly recovered. These results suggested that a lower dose of RES could cure the adverse effects of prenatal stress in early age male progeny. Thus, our study suggests, for the first time, practical values for a lower dose of RES 2 mg/kg as a safe and effective agent in the first week age of prenatally stressed mice.
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Zhao S, Liao T, Zhou T, Huang X, Xiang H, Chen J, Xu Z. Formyl-peptide receptor 2 suppresses proliferation, migration and invasion in human extravillous trophoblastic cells. Prostaglandins Other Lipid Mediat 2019; 143:106342. [DOI: 10.1016/j.prostaglandins.2019.106342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 03/10/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
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Xu Z, Zhao S, Zhou T, Liao T, Huang X, Xiang H, Zhang Q, Huang Y, Lin F, Ye D, Huang Y. Lipoxin A4 interferes with embryo implantation via suppression of epithelial-mesenchymal transition. Am J Reprod Immunol 2019; 81:e13107. [PMID: 30811719 DOI: 10.1111/aji.13107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/24/2019] [Accepted: 01/31/2019] [Indexed: 12/11/2022] Open
Abstract
PROBLEM To test whether lipoxin A4 (LXA4) interferes with embryo implantation via suppression of epithelial-mesenchymal transition (EMT). METHOD OF STUDY We developed a mouse model of LXA4 blocking embryo implantation and detected the indicators of EMT to confirm that LXA4 inhibits EMT might be a mechanism of interfering with the embryo implantation. We detected integrin-linked kinase (ILK), N-formylpeptide receptor 2 (FPR2), vascular endothelial growth factor, matrix metalloproteinases (MMPs), Akt, GSK3β, NF-ĸB, twist, vimentin, fibronectin, and β-catenin mRNA expression using reverse transcriptase-polymerase chain reaction (RT-PCR) and real-time RT-PCR; localized protein expression using immunohistochemistry and Western blotting assay; MMPs activity assay by gelatin zymography; and the status of implantation in pregnant animals assessed by pontamine blue reaction test. RESULTS Preimplantation administration of LXA4 resulted in implantation failure. LXA4 has a time- and dose-dependent effect on embryo implantation. Day 0.5 after fertilization is the most effective time to use LXA4 to block embryo implantation. (a) LXA4 reduced endometrial stroma edema; (b) LXA4 inhibited the activity of MMP9 and significantly upregulated the expression of β-catenin, and downregulated the expression of vimentin, fibronectin, twist, NF-κB, Akt, and Gsk-3β in the endometrium and TEV-1 cells; (c) LXA4 upregulated the expression of FPR2, and downregulated the expression of ILK; FPR2-overexpressing had an inhibitory effect on ILK in TEV-1 cells. CONCLUSION LXA4 inhibits EMT which attenuates ILK action by enhancing FPR2; therefore, this might be a mechanism of interfering with embryo implantation.
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Affiliation(s)
- Zhangye Xu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shenzhi Zhao
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tong Zhou
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tingting Liao
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xianping Huang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huiqiu Xiang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qiong Zhang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanjun Huang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Wenzhou Medical College, Wenzhou, China
| | - Feng Lin
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Wenzhou Medical College, Wenzhou, China
| | - Duyun Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yinping Huang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Wenzhou Medical College, Wenzhou, China
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Fogarty S. Fertility Massage: an Unethical Practice? Int J Ther Massage Bodywork 2018; 11:17-20. [PMID: 29593844 PMCID: PMC5868897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Glucocorticoid exposure induces preeclampsia via dampening 1,25-dihydroxyvitamin D 3. Hypertens Res 2017; 41:104-111. [PMID: 29093562 DOI: 10.1038/hr.2017.98] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 04/03/2017] [Accepted: 05/05/2017] [Indexed: 11/08/2022]
Abstract
The pathogenesis of preeclampsia (PE) involves a number of biological processes that may be directly or indirectly affected by glucocorticoid (GC) and vitamin D. GC exposure increases the risk of PE, and 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) deficiency may result in PE. The purpose of the present study was to confirm the involvement of GC/1,25-(OH)2D3 axis in the pathogenesis of PE. In the study, cortisol levels of PE patients were found to be higher than that of non-complicated pregnancies, while 1,25-(OH)2D3 were decreased in both PE women and GC-induced PE rats. Mechanically, GC reduced 1,25-(OH)2D3 levels via disturbing its biosynthetic and catabolic enzymes, including Cyp3a1,Cyp24a1 and Cyp27b1, especially enhancing the expressions of Cyp3a1, the dominant enzyme for vitamin D degeneration. Moreover, replenishing 1,25-(OH)2D3 ameliorated the symptoms and placental oxidative stress of GC-induced rat PE. The protective actions of 1,25-(OH)2D3 might be explained by its roles in antagonizing the effects of GC on trophoblast proliferation and apoptosis. Together, these findings suggest that GC exposure could lead to PE via dampening 1,25-(OH)2D3 biosynthesis, and GC/1,25-(OH)2D3 axis might represent a common pathway through which PE occurs.
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Zhou Y, Chen YH, Fu L, Yu Z, Xia MZ, Hu XG, Wang H, Xu DX. Vitamin D3 pretreatment protects against lipopolysaccharide-induced early embryo loss through its anti-inflammatory effects. Am J Reprod Immunol 2017; 77. [PMID: 28045211 DOI: 10.1111/aji.12620] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/19/2016] [Indexed: 12/22/2022] Open
Abstract
PROBLEM Increasing evidence demonstrates that inflammatory cytokines are involved in LPS-induced adverse pregnant outcomes including early embryo loss. Vitamin D3 (VitD3) has anti-inflammatory activity. We aimed to investigate the effects of vitamin D3 (VitD3) on LPS-induced early embryo loss in mice. METHOD OF STUDY All pregnant mice except controls were intraperitoneally (ip) injected with LPS on GD7. In VitD3 alone and LPS+VitD3 groups, pregnant mice were pretreated with VitD3 by gavage daily from GD5 to GD7. RESULTS LPS caused 62.5% pregnant mice with early embryo loss. Interestingly, the rate of abortion dropped to 14.3% when pregnant mice were pretreated with VitD3. Additional experiment showed that VitD3 significantly attenuated LPS-evoked elevation on TNF-α, IFN-γ, MIP-2, and nitrate plus nitrite in maternal serum. In addition, VitD3 alleviated LPS-induced COX-2 expression in the decidua and attenuated the elevation of PGF2α in maternal serum. Although VitD3 had no effect on IL-10 in maternal serum, it induced further elevation of serum IL-10 level in LPS-treated mice. Further analysis showed that VitD3 activated VDR signaling, simultaneously inhibited LPS-induced nuclear translocation of NF-κB p65 subunits in the decidua. CONCLUSIONS VitD3 protects mice from LPS-induced early embryo loss at least partially through its anti-inflammatory effects.
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Affiliation(s)
- Yan Zhou
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Yuan-Hua Chen
- Department of Histology and Embryology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Lin Fu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Zhen Yu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Mi-Zhen Xia
- School of Biological Science, Anhui Medical University, Hefei, China
| | - Xiao-Guang Hu
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Hua Wang
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, China.,Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
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Funghi L, Damiani F, Yen CF, Lee CL, Lombardi A, Schatz F, Lockwood CJ, Marcolongo P, Petraglia F, Arcuri F. Expression and regulation of 11β-hydroxysteroid dehydrogenase type 1 in first trimester human decidua cells: Implication in preeclampsia. Mol Cell Endocrinol 2016; 437:163-170. [PMID: 27544778 DOI: 10.1016/j.mce.2016.08.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 08/12/2016] [Indexed: 11/27/2022]
Abstract
Glucocorticoids are implicated in successful blastocyst implantation, whereas alterations in glucocorticoid levels are associated with various pregnancy disorders including preeclampsia. Tissue concentration of active glucocorticoids depends on the expression of 11β-hydroxysteroid dehydrogenase (11β-HSD). This study investigated the contribution of first trimester decidua to glucocorticoid availability at the fetal-maternal interface by assessing the expression and regulation of 11β-HSD in human first trimester decidual tissues and cells and by evaluating 11β-HSD levels in preeclamptic vs. gestational age-matched decidua. 11β-HSD1 was the predominant isoform in first trimester decidua. In vitro, decidual cell 11β-HSD1 levels and enzymatic activity were up-regulated by ovarian steroids and inflammatory cytokines. Higher levels of 11β-HSD1 were found in preeclamptic decidua compared to controls. The present study indicates the predominance of 11β-HSD oxoreductase isoform in early decidua. Observations that ovarian hormones and inflammatory cytokines up-regulate 11β-HSD1, together with increased 11β-HSD1 expression in preeclampsia, highlight a role for decidual cells in controlling biologically active glucocorticoids in early pregnancy.
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Affiliation(s)
- Lucia Funghi
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Francesco Damiani
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Chih-Feng Yen
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital Linkou and Chang Gung University College of Medicine, Kwei-Shan, Tao-Yuan, Taiwan; Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Chyi-Long Lee
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Annalia Lombardi
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Frederick Schatz
- Department of Obstetrics and Gynecology, University of South Florida, Morsani College of Medicine, Tampa, FL, USA
| | - Charles J Lockwood
- Department of Obstetrics and Gynecology, University of South Florida, Morsani College of Medicine, Tampa, FL, USA
| | - Paola Marcolongo
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Felice Petraglia
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Felice Arcuri
- Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.
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COX-2, aspirin and metabolism of arachidonic, eicosapentaenoic and docosahexaenoic acids and their physiological and clinical significance. Eur J Pharmacol 2016; 785:116-132. [DOI: 10.1016/j.ejphar.2015.08.049] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 06/19/2015] [Accepted: 08/26/2015] [Indexed: 01/22/2023]
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Luna RL, Vasconcelos AG, Nunes AKS, de Oliveira WH, Barbosa KPDS, Peixoto CA. Effects of Sildenafil Citrate and Heparin Treatments on Placental Cell Morphology in a Murine Model of Pregnancy Loss. Cells Tissues Organs 2016; 201:193-202. [PMID: 26978649 DOI: 10.1159/000444123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2016] [Indexed: 11/19/2022] Open
Abstract
Lipopolysaccharide (LPS) injections during pregnancy are well established as models for pregnancy complications, including fetal growth restriction (FGR), thrombophilia, preterm labor and abortion. Indeed, inflammation, as induced by LPS injection has been described as a pivotal factor in cases of miscarriage related to placental tissue damage. The phosphodiesterase-5 inhibitor sildenafil (Viagra®) is currently used to treat FGR cases in women, while low-molecular weight heparin (Fragmin®) is a standard treatment for recurrent miscarriage (RM). However, the pathways and cellular dynamics involved in RM are not completely understood. The aim of this study was to evaluate the protective effect of sildenafil and dalteparin in a mouse model of LPS-induced abortion. Histopathology, ultrastructural analysis and immunofluorescence for P-selectin were studied in two different placental cell types: trophoblast cells and labyrinth endothelial cells. Treatment with sildenafil either alone or in combination with heparin showed the best response against LPS-induced injury during pregnancy. In conclusion, our results support the use of these drugs as future therapeutic agents that may protect the placenta against inflammatory injury in RM events. Analyses of the ultrastructure and placental immunophysiology are important to understand the mechanism underlying RM. These findings may spark future studies and aid in the development of new therapies in cases of RM.
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Affiliation(s)
- Rayana Leal Luna
- Ultrastructure Laboratory, Aggeu Magalhx00E3;es Research Center, Oswaldo Cruz Foundation, Recife, Brazil
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Zhang D, Liu H, Zeng J, Miao X, Huang W, Chen H, Huang Y, Li Y, Ye D. Glucocorticoid exposure in early placentation induces preeclampsia in rats via interfering trophoblast development. Gen Comp Endocrinol 2016; 225:61-70. [PMID: 26407501 DOI: 10.1016/j.ygcen.2015.09.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/18/2015] [Accepted: 09/17/2015] [Indexed: 12/29/2022]
Abstract
In pregnancy, placenta can be exposed to glucocorticoids (GCs) via several ways, which may disturb placentation and adversely affect pregnancy. Preeclampsia (PE) is thought to be attributed, in part, to impaired trophoblast development. The purpose of the present study was to confirm that GC exposure in early placentation could lead to PE in rats, with the mechanisms involving dysregulated trophoblast development. In the study, pregnant rats were administered with 2.5mg/kg Dex subcutaneously once per day from gestational day 7 to 13. Maternal systolic blood pressure and urinary albumin were increased, while both fetus and placenta were restricted after GC exposure relative to the control group. GC exposure also contributed to placental abnormalities and renal impairment. Moreover, placental oxidative damage was increased along with placental hypoxia-inducible factor 1-alpha (HIF1A) overexpression after GC treatment. Mechanically, GC induced PE in rat partially through inhibiting trophoblast proliferation, migration, invasion and epithelial-mesenchymal transition (EMT), which involved phospho-extracellular signal regulated kinase (p-ERK) downregulation. Furthermore, GC receptor was required for the inhibition of GC on trophoblast proliferation, migration, invasion and EMT in vitro. These findings suggest that GC exposure in early placentation could contribute to PE in pregnant rats, with the mechanisms involving inhibition of trophoblast proliferation, migration, invasion and EMT by GC.
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Affiliation(s)
- Dongxin Zhang
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, People's Republic of China; Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Haojing Liu
- Department of Internal Medicine, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, People's Republic of China
| | - Ji Zeng
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, People's Republic of China
| | - Xili Miao
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, People's Republic of China
| | - Wei Huang
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Hongxiang Chen
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Yinping Huang
- Department of Gynecology and Obstetrics, First Affiliated Hospital, Wenzhou Medical University, Wenzhou 325003, People's Republic of China
| | - Yongsheng Li
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Duyun Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.
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Plana-Ripoll O, Parner E, Olsen J, Li J. Severe stress following bereavement during pregnancy and risk of pregnancy loss: results from a population-based cohort study. J Epidemiol Community Health 2015; 70:424-9. [PMID: 26584858 DOI: 10.1136/jech-2015-206241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 10/29/2015] [Indexed: 11/04/2022]
Abstract
BACKGROUND Previous findings on the association between stress during pregnancy and pregnancy loss are inconsistent. We aimed to estimate this association using a large prospective cohort. METHODS This population-based study included all 1 303 660 clinically recognised pregnancies in Denmark between 1995 and 2008. We categorised women as exposed to severe stress if they lost a child, sibling or parent during pregnancy. Cox Proportional Hazards models were used to study the association between exposure and rate of fetal death, starting with the follow-up on the day of completion of week 4 of pregnancy. In an attempt to control for unknown potential confounders, we also designed a pregnancy-matched analysis in which each woman had her own baseline risk of pregnancy loss and controls therefore for genetic and time-stable environmental factors. RESULTS A total of 146 031 pregnancies ended in clinically recognised fetal loss (11.2%) and a total of 10 808 (0.8%) women were categorised as exposed. The overall risk of pregnancy loss was similar in the exposed and unexposed (aHR=1.05, 95% CI 0.95 to 1.15). Results from the pregnancy-matched analysis (performed in 423 women) showed stronger and significant associations (aHR=1.83, 95% CI 1.49 to 2.25). All the analyses indicated a stronger effect of bereavement when the mother lost a child or when the death was unexpected. CONCLUSIONS Our main results suggested no strong association between severe stress during pregnancy and risk of pregnancy loss. Results from the pregnancy-matched analyses considered information from a selected and small group of women for whom there may exist a stronger association between stress during pregnancy and pregnancy loss. The fact that an unexpected death or the loss of a child had a stronger effect in both analyses may indicate that severe stressful situations increase the risk of pregnancy loss.
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Affiliation(s)
- Oleguer Plana-Ripoll
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Erik Parner
- Section for Biostatistics, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Jørn Olsen
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark Department of Epidemiology, UCLA School of Public Health, Los Angeles, California, USA
| | - Jiong Li
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
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Serhan CN, Chiang N, Dalli J. The resolution code of acute inflammation: Novel pro-resolving lipid mediators in resolution. Semin Immunol 2015; 27:200-15. [PMID: 25857211 DOI: 10.1016/j.smim.2015.03.004] [Citation(s) in RCA: 397] [Impact Index Per Article: 44.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/07/2015] [Accepted: 03/09/2015] [Indexed: 12/31/2022]
Abstract
Studies into the mechanisms in resolution of self-limited inflammation and acute reperfusion injury have uncovered a new genus of pro-resolving lipid mediators coined specialized pro-resolving mediators (SPM) including lipoxins, resolvins, protectins and maresins that are each temporally produced by resolving-exudates with distinct actions for return to homeostasis. SPM evoke potent anti-inflammatory and novel pro-resolving mechanisms as well as enhance microbial clearance. While born in inflammation-resolution, SPM are conserved structures with functions discovered in microbial defense, pain, organ protection and tissue regeneration, wound healing, cancer, reproduction, and neurobiology-cognition. This review covers these SPM mechanisms and other new omega-3 PUFA pathways that open their path for functions in resolution physiology.
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Affiliation(s)
- Charles N Serhan
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Institutes of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, United States.
| | - Nan Chiang
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Institutes of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Jesmond Dalli
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Institutes of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, United States
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Zhang D, Huang Y, Ye D. Intestinal dysbiosis: an emerging cause of pregnancy complications? Med Hypotheses 2015; 84:223-6. [PMID: 25613564 DOI: 10.1016/j.mehy.2014.12.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 12/28/2014] [Indexed: 12/16/2022]
Abstract
The gut microbiota is intimately involved in numerous aspects of normal human physiology, including nutrition and metabolism, immunomodulation and behavior and stress response. Intestinal dysbiosis can be a contributing cause of many diseases, altering the function of both near and far organ systems. During pregnancy, the maternal body undergoes dramatic physiological changes to support the growth of fetus-placenta, while intestinal dysbiosis may directly or indirectly disturb the remodeling of physiological balance, leading to maternal maladaptation. Thus, intestinal dysbiosis, i.e., altered composition or metabolism of microbiota may adversely affect pregnancy outcome and lead to pregnancy complications via disrupting maternal adaptation. Indeed, pregnant women with potential maladaptations are at high risk of developing pregnancy disorders, which is increasingly observed in clinical cases. Here we discuss the hypothesis that intestinal dysbiosis may induce pregnancy complications via affecting maternal adaptation and the possible mechanistic pathways.
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Affiliation(s)
- Dongxin Zhang
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, China; Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yinping Huang
- Department of Gynecology and Obstetrics, First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325003, China
| | - Duyun Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Rinaldi SF, Catalano RD, Wade J, Rossi AG, Norman JE. 15-epi-lipoxin A4 reduces the mortality of prematurely born pups in a mouse model of infection-induced preterm birth. Mol Hum Reprod 2015; 21:359-68. [PMID: 25567326 PMCID: PMC4381035 DOI: 10.1093/molehr/gau117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 12/29/2014] [Indexed: 02/06/2023] Open
Abstract
Preterm birth remains the leading cause of neonatal mortality and morbidity worldwide. There are currently few effective therapies and therefore an urgent need for novel treatments. Although there is much focus on trying to alter gestation of delivery, the primary aim of preterm birth prevention therapies should be to reduce prematurity related mortality and morbidity. Given the link between intrauterine infection and inflammation and preterm labour (PTL), we hypothesized that administration of lipoxins, key anti-inflammatory and pro-resolution mediators, could be a useful novel treatment for PTL. Using a mouse model of infection-induced PTL, we investigated whether 15-epi-lipoxin A4 could delay lipopolysaccharide (LPS)-induced PTL and reduce pup mortality. On D17 of gestation mice (n = 9–12) were pretreated with vehicle or 15-epi-lipoxin A4 prior to intrauterine administration of LPS or PBS. Although pretreatment with 15-epi-lipoxin A4 did not delay LPS-induced PTL, there was a significant reduction in the mortality amongst prematurely delivered pups (defined as delivery within 36 h of surgery) in mice treated with 15-epi-lipoxin A4 prior to LPS treatment, compared with those receiving LPS alone (P < 0.05). Quantitative real-time (QRT)-PCR analysis of utero-placental tissues harvested 6 h post-treatment demonstrated that 15-epi-lipoxin A4 treatment increased Ptgs2 expression in the uterus, placenta and fetal membranes (P < 0.05) and decreased 15-Hpgd expression (P < 0.05) in the placenta and uterus, suggesting that 15-epi-lipoxin A4 may regulate the local production and activity of prostaglandins. These data suggest that augmenting lipoxin levels could be a useful novel therapeutic option in the treatment of PTL, protecting the fetus from the adverse effects of infection-induced preterm birth.
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Affiliation(s)
- S F Rinaldi
- MRC Centre for Reproductive Health and Tommy's Centre for Maternal and Fetal Health, University of Edinburgh, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - R D Catalano
- MRC Centre for Reproductive Health and Tommy's Centre for Maternal and Fetal Health, University of Edinburgh, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - J Wade
- MRC Centre for Reproductive Health and Tommy's Centre for Maternal and Fetal Health, University of Edinburgh, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - A G Rossi
- MRC Centre for Inflammation Research, University of Edinburgh, Queen's Medical Research Institute, Edinburgh, UK
| | - J E Norman
- MRC Centre for Reproductive Health and Tommy's Centre for Maternal and Fetal Health, University of Edinburgh, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
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Prenatal lipopolysaccharide disrupts maternal behavior, reduces nest odor preference in pups, and induces anxiety: Studies of F1 and F2 generations. Eur J Pharmacol 2014; 738:342-51. [DOI: 10.1016/j.ejphar.2014.05.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 05/11/2014] [Accepted: 05/23/2014] [Indexed: 11/19/2022]
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Yao Y, Robinson AM, Zucchi FCR, Robbins JC, Babenko O, Kovalchuk O, Kovalchuk I, Olson DM, Metz GAS. Ancestral exposure to stress epigenetically programs preterm birth risk and adverse maternal and newborn outcomes. BMC Med 2014; 12:121. [PMID: 25286408 PMCID: PMC4244860 DOI: 10.1186/s12916-014-0121-6] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 07/01/2014] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Chronic stress is considered to be one of many causes of human preterm birth (PTB), but no direct evidence has yet been provided. Here we show in rats that stress across generations has downstream effects on endocrine, metabolic and behavioural manifestations of PTB possibly via microRNA (miRNA) regulation. METHODS Pregnant dams of the parental generation were exposed to stress from gestational days 12 to 18. Their pregnant daughters (F1) and grand-daughters (F2) either were stressed or remained as non-stressed controls. Gestational length, maternal gestational weight gain, blood glucose and plasma corticosterone levels, litter size and offspring weight gain from postnatal days 1 to 30 were recorded in each generation, including F3. Maternal behaviours were analysed for the first hour after completed parturition, and offspring sensorimotor development was recorded on postnatal day (P) 7. F0 through F2 maternal brain frontal cortex, uterus and placenta miRNA and gene expression patterns were used to identify stress-induced epigenetic regulatory pathways of maternal behaviour and pregnancy maintenance. RESULTS Progressively up to the F2 generation, stress gradually reduced gestational length, maternal weight gain and behavioural activity, and increased blood glucose levels. Reduced offspring growth and delayed behavioural development in the stress cohort was recognizable as early as P7, with the greatest effect in the F3 offspring of transgenerationally stressed mothers. Furthermore, stress altered miRNA expression patterns in the brain and uterus of F2 mothers, including the miR-200 family, which regulates pathways related to brain plasticity and parturition, respectively. Main miR-200 family target genes in the uterus, Stat5b, Zeb1 and Zeb2, were downregulated by multigenerational stress in the F1 generation. Zeb2 was also reduced in the stressed F2 generation, suggesting a causal mechanism for disturbed pregnancy maintenance. Additionally, stress increased placental miR-181a, a marker of human PTB. CONCLUSIONS The findings indicate that a family history of stress may program central and peripheral pathways regulating gestational length and maternal and newborn health outcomes in the maternal lineage. This new paradigm may model the origin of many human PTB causes.
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Hypoxic stress induces, but cannot sustain trophoblast stem cell differentiation to labyrinthine placenta due to mitochondrial insufficiency. Stem Cell Res 2014; 13:478-91. [PMID: 25239494 DOI: 10.1016/j.scr.2014.07.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/24/2014] [Accepted: 07/22/2014] [Indexed: 12/15/2022] Open
Abstract
Dysfunctional stem cell differentiation into placental lineages is associated with gestational diseases. Of the differentiated lineages available to trophoblast stem cells (TSC), elevated O2 and mitochondrial function are necessary to placental lineages at the maternal-placental surface and important in the etiology of preeclampsia. TSC lineage imbalance leads to embryonic failure during uterine implantation. Stress at implantation exacerbates stem cell depletion by decreasing proliferation and increasing differentiation. In an implantation site O2 is normally ~2%. In culture, exposure to 2% O2 and fibroblast growth factor 4 (FGF4) enabled the highest mouse TSC multipotency and proliferation. In contrast, hypoxic stress (0.5% O2) initiated the most TSC differentiation after 24h despite exposure to FGF4. However, hypoxic stress supported differentiation poorly after 4-7 days, despite FGF4 removal. At all tested O2 levels, FGF4 maintained Warburg metabolism; mitochondrial inactivity and aerobic glycolysis. However, hypoxic stress suppressed mitochondrial membrane potential and maintained low mitochondrial cytochrome c oxidase (oxidative phosphorylation/OxPhos), and high pyruvate kinase M2 (glycolysis) despite FGF4 removal. Inhibiting OxPhos inhibited optimum differentiation at 20% O2. Moreover, adding differentiation-inducing hyperosmolar stress failed to induce differentiation during hypoxia. Thus, differentiation depended on OxPhos at 20% O2; hypoxic and hyperosmolar stresses did not induce differentiation at 0.5% O2. Hypoxia-limited differentiation and mitochondrial inhibition and activation suggest that differentiation into two lineages of the labyrinthine placenta requires O2>0.5-2% and mitochondrial function. Stress-activated protein kinase increases an early lineage and suppresses later lineages in proportion to the deviation from optimal O2 for multipotency, thus it is the first enzyme reported to prioritize differentiation.
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Zhang D, Li Y, Peng H, Liu H, Cheng Q, Cheng X, Zeng P, Wu P, Chen H, Huang Y, Ye D. Glucocorticoids sensitize rat placental inflammatory responses via inhibiting lipoxin A4 biosynthesis. Biol Reprod 2014; 90:74. [PMID: 24571985 DOI: 10.1095/biolreprod.113.116384] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Inflammation dysregulation in placenta is implicated in the pathogenesis of numerous pregnancy complications. Glucocorticoids (GCs), universally considered anti-inflammatory, can also exert proinflammatory actions under some conditions, whereas whether and how GCs promote placental inflammation have not been intensively investigated. In this paper we report the opposing regulation of rat placental inflammation by synthetic GC dexamethasone (Dex). When Dex was subcutaneously injected 1 h after we administered an intraperitoneal lipopolysaccharide (LPS) challenge, neutrophil infiltration and proinflammatory Il1b, Il6, and Tnfa expression in rat placenta were significantly reduced. In contrast, Dex pretreatment for 24 h potentiated rat placental proinflammatory response to LPS and delayed inflammation resolution, which involved MAPKs and NF-kappaB activation. Mechanically, Dex pretreatment promoted 5-lipoxygenase (ALOX5) activation and increased leukotriene B4 production, whereas it inhibited the anti-inflammatory and proresolving lipid mediator lipoxin A4 (LXA4) biosynthesis in rat placenta via downregulating ALOX15 and ALOX15B expression. Moreover, LXA4 supplementation dampened Dex-potentiated placental inflammation and suppressed Dex-mediated ALOX5 activation in vivo and in vitro. Taken together, these findings suggest that GCs exposure could promote placental inflammation initiation and delay resolution via disrupting LXA4 biosynthesis.
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Affiliation(s)
- Dongxin Zhang
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Xu Z, Zhao F, Xiang H, Wang N, Ye D, Huang Y. Lipoxin A4: The double-edge sword in mice pregnancy. Am J Reprod Immunol 2014; 72:57-64. [PMID: 24712656 DOI: 10.1111/aji.12242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 02/26/2014] [Indexed: 11/29/2022] Open
Abstract
PROBLEM To evaluate the role for LXA4 in the pregnancy. METHOD OF STUDY We detected the changes of LXA4 and LXA4 biosynthetic enzymes in the mice's pregnancy, blocked LXA4 signaling pathway, managed LXA4 level, and treated LPS-induced mouse abortion model to systematically determine how LXA4 impact pregnancy. RESULTS The concentrations of LXA4 in serum and uterus were lowest on Days 4.5 of pregnancy and in labor as compared to Day 12.5 of pregnancy (270.2 ± 33.2, 277.5 ± 23.7 versus 457.1 ± 40.9 pg/mL). Inhibition of the LXA4 signaling pathway did not affect pregnancy during the peri-implantation period of pregnancy, but induced abortion when administered after implantation of blastocysts. High levels of LXA4 interfered with implantation, but protected mice from aborting in response to LPS. CONCLUSION LXA4 might be involved in the process of pregnancy, and LXA4 might act as the double-edge sword in pregnancy: the anti-implantation effect in the stage of peri-implantation and the anti-abortion affect after blastocyst implantation.
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Affiliation(s)
- Zhangye Xu
- Department of Obstetrics and Gynecology, 1st Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
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