1
|
Akram Z, Mahjabeen I, Irshad F, Ahmed MW, Rehman S, Rizwan M, Shafqat A, Kiran A, Saeed A. Expression deregulation of matrix metalloproteinases and vasoconstriction related genes in Pakistani females with abnormal uterine bleeding. BMC Womens Health 2022; 22:543. [PMID: 36564776 PMCID: PMC9784108 DOI: 10.1186/s12905-022-02132-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Abnormal uterine bleeding (AUB) is irregular menstrual bleeding which has great impact on female health and life style. Various genetic factors are involved in etiology and pathology of AUB. Present study was designed to explore the association of PTGFR, MMP9, MMP2, TGFB3 and VEGFB with AUB. METHODS Blood samples of 212 females with AUB were collected along with age-matched healthy control. Expression variation of targeted genes was evaluated using qPCR. Present study cohort was divided into different groups based on demographic parameters and all targeted genes were correlated with study demographics. RESULTS Expression of targeted genes was significantly (P < 0.001) downregulated in females with AUB compared to control. Reduced (P < 0.01) expression of targeted genes was observed in all age groups (21-30, 31-40, 41-50 year) of AUB patients compared to respective control. Expression of VEGFB increased (P < 0.05) in AUB females with > 9 days bleeding compared to AUB patient had < 9 days bleeding. AUB women with miscarriage history showed upregulation in MMP2, TGFB3 (P < 0.05), and downregulation in MMP9 and VEGFB (P < 0.05) expression compared to AUB group with no miscarriage history. Expression of MMP2 increased (P < 0.05) in AUB females with > 60 kg body weigh compared to AUB patient with < 60 kg weight. CONCLUSION Present study open a new window for diagnosis of AUB at early stages and suggested a possible involvement of PTGFR, MMP9, MMP2, TGFB3 and VEGFB as candidate biomarkers in AUB.
Collapse
Affiliation(s)
- Zertashia Akram
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Ishrat Mahjabeen
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Faiza Irshad
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Malik Waqar Ahmed
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Sadaf Rehman
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Muhammad Rizwan
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Amna Shafqat
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Aniqa Kiran
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Asma Saeed
- grid.418920.60000 0004 0607 0704Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| |
Collapse
|
2
|
Wood EM, Hornaday KK, Slater DM. Prostaglandins in biofluids in pregnancy and labour: A systematic review. PLoS One 2021; 16:e0260115. [PMID: 34793529 PMCID: PMC8601582 DOI: 10.1371/journal.pone.0260115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/02/2021] [Indexed: 01/14/2023] Open
Abstract
Prostaglandins are thought to be important mediators in the initiation of human labour, however the evidence supporting this is not entirely clear. Determining how, and which, prostaglandins change during pregnancy and labour may provide insight into mechanisms governing labour initiation and the potential to predict timing of labour onset. The current study systematically searched the existing scientific literature to determine how biofluid levels of prostaglandins change throughout pregnancy before and during labour, and whether prostaglandins and/or their metabolites may be useful for prediction of labour. The databases EMBASE and MEDLINE were searched for English-language articles on prostaglandins measured in plasma, serum, amniotic fluid, or urine during pregnancy and/or spontaneous labour. Studies were assessed for quality and risk of bias and a qualitative summary of included studies was generated. Our review identified 83 studies published between 1968-2021 that met the inclusion criteria. As measured in amniotic fluid, levels of PGE2, along with PGF2α and its metabolite 13,14-dihydro-15-keto-PGF2α were reported higher in labour compared to non-labour. In blood, only 13,14-dihydro-15-keto-PGF2α was reported higher in labour. Additionally, PGF2α, PGF1α, and PGE2 were reported to increase in amniotic fluid as pregnancy progressed, though this pattern was not consistent in plasma. Overall, the evidence supporting changes in prostaglandin levels in these biofluids remains unclear. An important limitation is the lack of data on the complexity of the prostaglandin pathway outside of the PGE and PGF families. Future studies using new methodologies capable of co-assessing multiple prostaglandins and metabolites, in large, well-defined populations, will help provide more insight as to the identification of exactly which prostaglandins and/or metabolites consistently change with labour. Revisiting and revising our understanding of the prostaglandins may provide better targets for clinical monitoring of pregnancies. This study was supported by the Canadian Institutes of Health Research.
Collapse
Affiliation(s)
- Eilidh M. Wood
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kylie K. Hornaday
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Donna M. Slater
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Obstetrics and Gynecology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- * E-mail:
| |
Collapse
|
3
|
C G, D P M, J C SA, S L G, A L N, E DM, C G E, S N Z, T A L, S SJ, J F, S D, P S. Neighborhoods, Racism, Stress, and Preterm Birth Among African American Women: A Review. West J Nurs Res 2021; 44:101-110. [PMID: 34455864 DOI: 10.1177/01939459211041165] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
African American women are more likely to experience preterm birth (<37 completed weeks gestation) compared with White women. African American women are also more likely to live in neighborhoods characterized as disadvantaged (i.e., exhibiting higher rates of vacant housing, poorer property conditions, and more litter and crime) and to experience racial discrimination compared with White women. These chronic stressors have been related to preterm birth (PTB) among African American women. This review focuses on potential stress-related pathways by which neighborhood disadvantage and racial discrimination increase the risk for PTB among African American women. Specifically, we propose cortisol, systemic inflammation, proteome and lipidome profiles, and telomere shortening as potential mediators linking these social determinants of health with PTB among African American women. Examination of these factors and the signaling pathways they contribute to will increase our knowledge of the effects of social determinants of health on PTB for African American women.
Collapse
Affiliation(s)
- Giurgescu C
- University of Central Florida, Orlando, FL, USA
| | - Misra D P
- Michigan State University, East Lansing, MI, USA
| | | | | | - Nowak A L
- Columbia University, New York, NY, USA
| | | | - Engeland C G
- Pennsylvania State University, State College, PA, USA
| | - Zenk S N
- National Institute of Nursing Research and National Institute of Minority Health and Health Disparities, Bethesda, MD, USA
| | - Lydic T A
- Michigan State University, East Lansing, MI, USA
| | | | - Ford J
- Ohio State University, Columbus, OH, USA
| | - Drury S
- Tulane University, New Orleans, LA, USA
| | - Stemmer P
- Wayne State University, Detroit, MI, USA
| |
Collapse
|
4
|
Fischer DP, Griffiths AL, Lui S, Sabar UJ, Farrar D, O'Donovan PJ, Woodward DF, Marshall KM. Distribution and Function of Prostaglandin E 2 Receptors in Mouse Uterus: Translational Value for Human Reproduction. J Pharmacol Exp Ther 2020; 373:381-390. [PMID: 32205366 DOI: 10.1124/jpet.119.263509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/10/2020] [Indexed: 12/19/2022] Open
Abstract
Prostaglandin (PG) E analogs are used clinically to ripen the cervix and induce labor. However, selective receptor agonists may have potential to improve induction response rates or manage unwanted uterine hypercontractility in conditions such as dysmenorrhea and preterm labor. To characterize their therapeutic value, PGE2 analogs were used to investigate the functional E-type prostanoid (EP) receptor population in isolated human uterus. Responsiveness in mouse tissues was also examined to validate its use as a preclinical model. Uterine samples were obtained from mice at dioestrus (n = 12), term gestation (n = 14), and labor (n = 12) and from the lower uterus of women undergoing hysterectomy (n = 12) or Caesarean section (n = 18). Vehicle and agonist effects were assessed using superfusion and immersion techniques. PGE2 evoked predominant excitatory responses in mouse and relaxation in human tissues. Selective EP4 agonists inhibited tissue activity in both nonpregnant species, while the EP2 mimetic CP533536 also attenuated uterine contractions throughout gestation. The uterotonic effects of the EP3/1 agonist sulprostone were more pronounced than the EP1 agonist ONO-D1-004, corresponding to abundant EP3 receptor expression in all samples. The contractile phenotype in mouse compared with human uteri may relate to regional differences as well as high expression of EP3 receptor transcripts. Similarities in nonpregnant and gestational tissues across species suggest that EP3 may represent a valuable translational drug target for preventing uterine hypercontractility by employing a selective antagonist. SIGNIFICANCE STATEMENT: This research validates the use of nonpregnant mice for preclinical drug discovery of uterine EP receptor targets. To determine the utility of novel drugs and delivery systems at term pregnancy and labor, pharmacological agents interacting with EP3 receptors have clear translational value.
Collapse
Affiliation(s)
- Deborah P Fischer
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.).
| | - Anna L Griffiths
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Sylvia Lui
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Uzmah J Sabar
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Diane Farrar
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Peter J O'Donovan
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - David F Woodward
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Kay M Marshall
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| |
Collapse
|
5
|
Comparison of endometrial prostanoid profiles in three infertile subgroups: the missing part of receptivity? Fertil Steril 2020; 113:670-678.e1. [PMID: 32061358 DOI: 10.1016/j.fertnstert.2019.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/23/2019] [Accepted: 10/08/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To study the prostanoid profile of the endometria of patients with recurrent implantation failure (RIF), unexplained infertility (UIF), and recurrent miscarriages (RM), and to compare them with the endometria of healthy fertile controls. DESIGN Prospective cohort study. SETTING University hospital. PATIENT(S) Fifteen patients with RIF, 18 patients with UIF, 16 patients with RM, and 23 fertile controls were recruited. INTERVENTION(S) Endometrial samples were taken during the window of implantation. After tissue homogenization and extraction, analysis with ultra-performance liquid chromatography diode array detector electrospray ionisation tandem mass spectrometry was performed. MAIN OUTCOME MEASURES Concentrations of prostaglandin (PG) D1, PGE1, PGF1α, 6-ketoPGF1α, PGD2, PGE2, PGF2α, 15-deoxy-Δ12,14-PGJ2, PGD3, PGE3, PGF3α, thromboxane B2, 13,14-dihydro-PGE1, 13,14-dihydro-PGF1α, 13,14-dihydro-PGF2α, 13,14-dihydro-15-keto-PGE1, 13,14-dihydro-15-keto-PGE2, and 13,14-dihydro-15-keto-PGF2α were assessed. RESULT(S) Comparison of the endometria of patients with UIF and the controls showed no statistically significant differences. When the endometria of patients with RIF were compared with the controls, thromboxane B2 (TXB2) was found significantly higher (843.1 pg/mg vs. 133.5 pg/mg). When the endometria of patients with RM were compared with controls, 13,14-dihydro-15-keto PGF2α and TXB2 were found significantly higher (3907.30 pg/mg vs. 17.80 pg/mg and 858.7 pg/mg vs. 133.5 pg/mg respectively). CONCLUSION(S) We identified increased endometrial presence of TXB2 in patients with RM and RIF, and 13,14-dihydro-15-keto PGF2α in patients with RM. Although common ground is observed for RM and RIF, prostanoids, on the other hand, might make their own contribution to endometrial receptivity as important as genes and proteins. Attempts to normalize the prostaglandin profile of the endometrium via enzymatic activity can open new therapeutic options.
Collapse
|
6
|
Urrego D, Liwa AC, Cole WC, Wood SL, Slater DM. Cyclooxygenase inhibitors for treating preterm labour: What is the molecular evidence? 1. Can J Physiol Pharmacol 2019; 97:222-231. [PMID: 30661374 DOI: 10.1139/cjpp-2018-0380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Preterm birth (<37 weeks of gestation) significantly increases the risk of neonatal mortality and morbidity. As many as half of all preterm births occur following spontaneous preterm labour. Since in such cases there are no known reasons for the initiation of labour, treatment of preterm labour (tocolysis) has sought to stop labour contractions and delay delivery. Despite some success, the use of cyclooxygenase (COX) inhibitors is associated with maternal/fetal side effects, and possibly increased risk of preterm birth. Clinical use of these drugs predates the collection of molecular and biochemical evidence in vitro, examining the expression and activity of COX enzymes in pregnant uterine tissues with and without labour. Such evidence is important to the rationale that COX enzymes are, or are not, appropriate targets for the tocolysis. The current study systematically searched existing scientific evidence to address the hypothesis that COX expression/activity is increased with the onset of human labour, in an effort to determine whether there is a rationale for the use of COX inhibitors as tocolytics. Our review identified 44 studies, but determined that there is insufficient evidence to support or refute a role of COX-1/-2 in the onset of preterm labour that supports COX-targeted tocolysis.
Collapse
Affiliation(s)
- Daniela Urrego
- a Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 4N1, Canada
| | - Anthony C Liwa
- a Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 4N1, Canada.,b Department of Clinical Pharmacology, Weill School of Medicine, Catholic University of Health and Allied Sciences, PO Box 1464, Mwanza, Tanzania
| | - William C Cole
- a Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 4N1, Canada
| | - Stephen L Wood
- c Department of Obstetrics and Gynaecology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 1N4, Canada
| | - Donna M Slater
- a Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 4N1, Canada.,c Department of Obstetrics and Gynaecology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW Calgary, AB T2N 1N4, Canada
| |
Collapse
|
7
|
Hadley EE, Richardson LS, Torloni MR, Menon R. Gestational tissue inflammatory biomarkers at term labor: A systematic review of literature. Am J Reprod Immunol 2017; 79. [PMID: 29076197 DOI: 10.1111/aji.12776] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 10/04/2017] [Indexed: 01/06/2023] Open
Abstract
Parturition at term is characterized by inflammatory overload in both feto-maternal tissues. Despite the large number of individual studies on changes in inflammatory biomarkers linked to labor, a comprehensive profile of them in each of the uterine compartments is not available to better understand their mechanistic contributions to labor. This systematic review investigated the pro- and anti-inflammatory biomarkers reported in intra-uterine tissues (amnion, chorion, decidua, placenta, and myometrium) at term labor. We conducted a systematic review of studies on pro- and anti-inflammatory biomarkers (mRNA and/or protein) reported in feto-maternal tissues during normal human term labor, published in English (1980-2016), in 3 electronic data bases. From a total of 3712 citations, 172 were included for final review. Each tissue expresses a unique set of biomarkers at the time of term labor, but there is significant overlap between tissues. All tissues had IL-6, IL-8, IL-1β, COX-2, PGE-2, TNF-α, and hCAP18 in common at term labor. Common and unique inflammatory biomarkers are expressed in various feto-maternal compartments at term labor. Increase in pro-inflammatory markers in all gestational tissue signifies their harmonious functional role in promoting labor. Anti-inflammatory markers at term labor are hardly reported.
Collapse
Affiliation(s)
- Emily E Hadley
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine & Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Lauren S Richardson
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine & Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Maria R Torloni
- Department of Obstetrics & Gynecology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Ramkumar Menon
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine & Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| |
Collapse
|
8
|
Park JY, Romero R, Lee J, Chaemsaithong P, Chaiyasit N, Yoon BH. An elevated amniotic fluid prostaglandin F2α concentration is associated with intra-amniotic inflammation/infection, and clinical and histologic chorioamnionitis, as well as impending preterm delivery in patients with preterm labor and intact membranes. J Matern Fetal Neonatal Med 2015; 29:2563-72. [PMID: 26669519 DOI: 10.3109/14767058.2015.1094794] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To determine whether an elevated amniotic fluid concentration of prostaglandin F2α (PGF2α) is associated with intra-amniotic inflammation/infection and adverse pregnancy outcomes in patients with preterm labor and intact membranes. MATERIALS AND METHODS The retrospective cohort study included 132 patients who had singleton pregnancies with preterm labor (< 35 weeks of gestation) and intact membranes. Amniotic fluid was cultured for aerobic and anaerobic bacteria as well as for genital mycoplasmas. Intra-amniotic inflammation was defined by an elevated amniotic fluid matrix metalloproteinase-8 (MMP-8) concentration (>23 ng/mL). PGF2α was measured with a sensitive and specific immunoassay. The amniotic fluid PGF2α concentration was considered elevated when it was above the 95th percentile among pregnant women at 15-36 weeks of gestation who were not in labor (≥170 pg/mL). RESULTS (1) The prevalence of an elevated amniotic fluid PGF2α concentration was 40.2% (53/132) in patients with preterm labor and intact membranes; (2) patients with an elevated amniotic fluid PGF2α concentration had a significantly higher rate of positive amniotic fluid culture [19% (10/53) versus 5% (4/79); p = 0.019], intra-amniotic inflammation/infection [49% (26/53) versus 20% (16/79); p = 0.001], spontaneous preterm delivery, clinical and histologic chorioamnionitis, and funisitis, as well as a higher median amniotic fluid MMP-8 concentration and amniotic fluid white blood cell count and a shorter amniocentesis-to-delivery interval than those without an elevated concentration of amniotic fluid PGF2α (p < 0.05 for each); and (3) an elevated amniotic fluid PGF2α concentration was associated with a shorter amniocentesis-to-delivery interval after adjustment for the presence of intra-amniotic inflammation/infection [hazard ratio 2.1, 95% confidence interval (CI) 1.4-3.1; p = 0.001]. CONCLUSION The concentration of PGF2α was elevated in the amniotic fluid of 40.2% of patients with preterm labor and intact membranes and is an independent risk factor for intra-amniotic inflammation/infection, impending preterm delivery, chorioamnionitis, and funisitis.
Collapse
Affiliation(s)
- Jee Yoon Park
- a Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Seoul , Republic of Korea
| | - Roberto Romero
- b Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH/DHHS, Bethesda, MD , Detroit , MI , USA .,c Department of Obstetrics and Gynecology , University of Michigan , Ann Arbor , MI , USA .,d Department of Epidemiology and Biostatistics , Michigan State University , East Lansing , MI , USA .,e Center for Molecular Medicine and Genetics, Wayne State University , Detroit , MI , USA , and
| | - JoonHo Lee
- a Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Seoul , Republic of Korea
| | - Piya Chaemsaithong
- b Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH/DHHS, Bethesda, MD , Detroit , MI , USA .,f Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Noppadol Chaiyasit
- b Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH/DHHS, Bethesda, MD , Detroit , MI , USA .,f Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Bo Hyun Yoon
- a Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Seoul , Republic of Korea
| |
Collapse
|
9
|
Lipid Fingerprinting in Mild versus Severe Forms of Gestational Diabetes Mellitus. PLoS One 2015; 10:e0144027. [PMID: 26633694 PMCID: PMC4669127 DOI: 10.1371/journal.pone.0144027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/12/2015] [Indexed: 12/16/2022] Open
Abstract
The blood serum lipid profile of women with Gestational Diabetes Mellitus (GDM) is still under study. There are no data on the serum lipid profile of GDM patients with more severe (insulin treated) compared to milder forms (diet treated) GDM. The aim of our study was to analyze the blood serum lipid profile of patients with milder versus more severe forms of GDM and to compare these findings with those of healthy pregnant women. This cross-sectional analytical study included 30 insulin-treated GDM, 30 diet-only GDM and 30 healthy pregnant women. Serum lipid was extracted from the 90 participants and their lipid profiles were analyzed by lipid fingerprinting using liquid-chromatography-mass spectrometry. A total of 143 parent ions were differentially represented in each of the three groups, belonging to the following classes: Glycerophospholipids, Sterol Lipids, Sphingolipids, Prenol Lipids, Fatty Acyls and Glycerolipids. There were significant differences in the lipid profiles of healthy pregnant women compared to GDM patients and also between milder versus more severe forms of GDM. There are marked differences in lipid fingerprinting between healthy pregnant women compared to those with GDM in the third trimester. Moreover, the lipid profile of women with more severe forms of GDM differs considerably from that of women with milder forms of GDM. These findings may be useful to help clarify the pathogenesis of milder and more severe forms of GDM.
Collapse
|
10
|
Hong JS, Romero R, Lee DC, Than NG, Yeo L, Chaemsaithong P, Ahn S, Kim JS, Kim CJ, Kim YM. Umbilical cord prostaglandins in term and preterm parturition. J Matern Fetal Neonatal Med 2015; 29:523-31. [PMID: 25758616 DOI: 10.3109/14767058.2015.1011120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Prostaglandins (PGs) are considered the universal mediators of parturition. Amniotic fluid PGE2 and PGF2α concentrations increase before the onset of spontaneous labor at term, as well as during labor. This study was conducted to determine if the concentrations of umbilical cord PGE2 and PGF2α change with advancing gestational age, spontaneous labor at term, and preterm labor (with and without funisitis). METHODS Umbilical cord (UC) tissue samples were obtained from women (N = 158) with singleton pregnancies in the following groups: (1) term deliveries without labor (TNL; n = 20); (2) term deliveries with labor (TIL; n = 20); (3) spontaneous preterm deliveries (sPTD) with (n = 20) and without acute funisitis (n = 20); and (4) preeclampsia without labor (n = 78). The concentrations of PGs were determined in different locations of the UC. PGE2 and PGF2α were measured by specific immunoassays. Non-parametric statistics were used for analysis. RESULTS (1) In spontaneous preterm deliveries, the median UC PGE2 concentration was higher in cases with funisitis than in those without funisitis (233.7 pg/µg versus 87.4 pg/µg of total protein, p = 0.001); (2) the median UC PGE2 concentration in sPTD with funisitis was also higher than that obtained from samples who had undergone labor at term (233.7 pg/µg versus 116.1 pg/µg of total protein, p = 0.03); (3) the UC PGE2 and PGF2α concentration increased as a function of advancing gestational age before 36 weeks (PGE2: ρ = 0.59, p < 0.001; PGF2α: ρ = 0.39, p = 0.01), but not after 36 weeks (PGE2: ρ = -0.1, p = 0.5; PGF2α: ρ = -0.2, p = 0.2); (4) the median UC concentrations of PGE2 and PGF2α at term was similar in samples obtained from women with and without labor (PGE2: TNL 133.7 pg/µg versus TIL 116.1 pg/µg of total protein, p = 0.9; PGF2α: TNL 8.4 pg/µg versus TIL 8.1 pg/µg of total protein, p = 0.7); and (5) there was no correlation between UC PG concentration and gestational age at term pregnancy (PGE2: ρ = 0.01, p = 0.9; PGF2α: ρ = 0.07, p = 0.7). CONCLUSIONS (1) PGE2 concentrations in the UC are higher in the presence of acute funisitis than in the absence of this lesion; (2) spontaneous labor at term was not associated with a change in the UC concentration of PGE2 and PGF2α; and (3) the UC concentrations of PGE2 and PGF2α increased as a function of gestational age. We propose that UC PGs act as inflammatory mediators generated in the context of fetal systemic inflammation.
Collapse
Affiliation(s)
- Joon-Seok Hong
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,b Department of Obstetrics and Gynecology , Seoul National University Bundang Hospital , Gyeonggi-do , Republic of Korea
| | - Roberto Romero
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,c Department of Obstetrics and Gynecology , University of Michigan , Ann Arbor , MI , USA .,d Department of Epidemiology and Biostatistics , Michigan State University , East Lansing , MI , USA
| | - Deug-Chan Lee
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,e College of Biomedical Science, Kangwon National University , Chuncheon , Republic of Korea
| | - Nandor Gabor Than
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,f Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Lami Yeo
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,f Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Piya Chaemsaithong
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,f Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Soyeon Ahn
- g Medical Research Collaborating Center, Seoul National University Bundang Hospital , Gyeonggi-do , Republic of Korea
| | - Jung-Sun Kim
- h Department of Pathology , Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul , Republic of Korea
| | - Chong Jai Kim
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,i Department of Pathology , Asan Medical, Center University of Ulsan College of Medicine , Seoul , Republic of Korea , and
| | - Yeon Mee Kim
- a Perinatology Research Branch, NICHD/NIH/DHHS , Bethesda, MD, and Detroit , MI , USA .,j Department of Pathology , Haeundae Paik Hospital, Inje University College of Medicine , Busan , Republic of Korea
| |
Collapse
|
11
|
Dasilva G, Pazos M, Gallardo JM, Rodríguez I, Cela R, Medina I. Lipidomic analysis of polyunsaturated fatty acids and their oxygenated metabolites in plasma by solid-phase extraction followed by LC-MS. Anal Bioanal Chem 2014; 406:2827-39. [PMID: 24618987 DOI: 10.1007/s00216-014-7701-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/08/2014] [Accepted: 02/17/2014] [Indexed: 01/08/2023]
Abstract
The present work describes the development of a robust and sensitive targeted analysis platform for the simultaneous quantification in blood plasma of lipid oxygenated mediators and fatty acids using solid-phase extraction (SPE) and high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS). The concurrent analysis of these lipid mediators is challenging because of their instability, differences in solubility, and the frequent occurrence of isobaric forms with similar fragmentation patterns. Results demonstrated that the reduction of SPE temperature to 4 °C is a critical parameter for preserving the hydroperoxy derivatives. Polymeric HLB cartridges increased 40-50 % ARA, EPA, and DHA sensitivity compared to C18 sorbent and also provided higher global performance for most hydroxides and other oxidation products. The proposed method for the two tested mass analyzers yields high sensitivity, good linearity, and reproducibility, with detection limits ranging 0.002-7 ng/mL and global recoveries as high as 85-112 %. However, the additional advantage of the linear ion trap (LIT) mass analyzer working in full scan product ion mode, compared to the triple quadrupole (QqQ) operating in multiple reaction monitoring (MRM), should be noted: the full scan product ion mode provides the full fragmentation spectra of compounds that allowed the discrimination of coeluting isomers and false positive identifications without additional chromatography development. The proposed lipidomic procedure demonstrates a confident, simple, and sensitive method to profile in plasma a wide range of lipid eicosanoid and docosanoid mediators, including innovatively the analysis of hydroperoxy congeners and nonoxidized PUFA precursors.
Collapse
Affiliation(s)
- Gabriel Dasilva
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC), 36208, Vigo, Galicia, Spain,
| | | | | | | | | | | |
Collapse
|
12
|
Mosher AA, Rainey KJ, Riley B, Levinson HS, Vinturache AE, Wood SL, Slater DM. Regulation of sPLA2-IID in Human Decidua: Insights Into the Complexity of the Prostaglandin Pathway in Labor. Reprod Sci 2014; 21:921-929. [PMID: 24440994 DOI: 10.1177/1933719113519176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Prostaglandins are implicated in the labor process, yet the precise role and regulation of the prostaglandin pathway remains to be elucidated. The first step in the pathway is cleavage of membrane phospholipids by phospholipase A2 (PLA2). Previous work demonstrated upregulation of secretory PLA2 (sPLA2)-IIA with labor in human myometrium, and recent evidence shows that there are numerous PLA2 isoforms. The present study investigates the potential of additional sPLA2 isoforms during pregnancy and labor. Real-time reverse transcriptase-polymerase chain reaction (RT-PCR), Western blotting, and immunohistochemistry were used to determine sPLA2 expression and localization. Results show the presence of sPLA2-IID in amnion, chorion, placenta, decidua, and myometrium. Expression of sPLA2-IID in decidua was significantly decreased in term labor compared to nonlabor patients, whereas no significant labor-associated changes were observed in other gestational tissues. Secretory PLA2-IID was localized within chorion fibroblasts, placenta trophoblasts, decidual cells, and in myometrial smooth muscle cells. In primary decidual cell cultures, interleukin (IL) 10 (IL-10) increased sPLA2-IID messenger RNA (mRNA) expression, while IL-1β had no effect on sPLA2-IID mRNA expression. In conclusion, decreased expression of sPLA2-IID in the decidua at labor indicates that it is unlikely to contribute to increased prostaglandin production during labor. However, increased expression of sPLA2-IID, induced by IL-10, suggests that sPLA2-IID may play an important anti-inflammatory role at the maternal-fetal interface. Nevertheless, precise functions of sPLA2-IID within the human uterus remain to be determined.
Collapse
Affiliation(s)
- Andrea A Mosher
- Department of Physiology & Pharmacology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kelly J Rainey
- Department of Physiology & Pharmacology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Brigitta Riley
- Department of Physiology & Pharmacology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Hayley S Levinson
- Department of Physiology & Pharmacology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Angela E Vinturache
- Department of Paediatrics, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Stephen L Wood
- Department of Obstetrics & Gynaecology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Donna M Slater
- Department of Physiology & Pharmacology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada Department of Obstetrics & Gynaecology, Alberta Children's Hospital Research Institute for Child and Maternal Health, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| |
Collapse
|
13
|
Schaible AM, Koeberle A, Northoff H, Lawrenz B, Weinigel C, Barz D, Werz O, Pergola C. High capacity for leukotriene biosynthesis in peripheral blood during pregnancy. Prostaglandins Leukot Essent Fatty Acids 2013; 89:245-55. [PMID: 23870194 DOI: 10.1016/j.plefa.2013.06.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/20/2013] [Accepted: 06/23/2013] [Indexed: 11/15/2022]
Abstract
Pregnancy is accompanied by major immunological changes to maintain both tolerance for the fetus and immune competence. Leukotrienes are powerful 5-lipoxygenase-derived inflammatory mediators and the characteristics of leukotriene-related diseases (e.g., asthma, allergic rhinitis) change during pregnancy. Here, we show that pregnancy affects leukotriene synthesis in human blood and leukocytes. 5-Lipoxygenase product formation in stimulated blood of pregnant women was significantly higher than in non-pregnant females. Although a pregnancy-related increase in neutrophil and monocyte counts may explain these observations, granulocytes of pregnant donors have lower leukotriene-synthetic capacities. On the other hand, granulocytes from non-pregnant woman produced more leukotrienes when resuspended in plasma of pregnant women than of non-pregnant females. Together, we show that leukotriene biosynthesis in maternal blood is increased by the interrelations of higher leukocyte numbers, lower cellular capacity for leukotriene synthesis and stimulatory effects of plasma. This bias may affect leukotriene-related diseases during pregnancy and their pharmacological treatment.
Collapse
Affiliation(s)
- A M Schaible
- Chair of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller-University Jena, Philosophenweg 14, 07743 Jena, Germany
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Murphy SA, Nicolaou A. Lipidomics applications in health, disease and nutrition research. Mol Nutr Food Res 2013; 57:1336-46. [PMID: 23729171 DOI: 10.1002/mnfr.201200863] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 02/21/2013] [Accepted: 03/14/2013] [Indexed: 01/14/2023]
Abstract
The structural and functional diversity of lipids accounts for their involvement into a wide range of homeostatic processes and disease states, including lifestyle-related diseases as well as genetic conditions. Challenges presented by this diversity have been addressed to a great extent by the development of lipidomics, a platform that makes possible the detailed profiling and characterisation of lipid species present in any cell, organelle, tissue or body fluid, and allows for a wider appreciation of the biological role of lipid networks. Progress in the field of lipidomics has been greatly facilitated by recent advances in MS and includes a range of analytical platforms supporting applications spanning from qualitative and quantitative assessment of multiple species to lipid imaging. Here we review these MS techniques currently in routine use in lipidomics, alongside with new ones that have started making an impact in the field. Recent applications in health, disease and nutrition-related questions will also be discussed with a view to convey the importance of lipidomics contributions to biosciences and food technology.
Collapse
Affiliation(s)
- Sharon A Murphy
- School of Pharmacy and Centre for Skin Sciences, School of Life Sciences, University of Bradford, Bradford, UK
| | | |
Collapse
|
15
|
Abstract
Lipid mediators are produced from the oxidation of polyunsaturated fatty acids through enzymatic and free radical-mediated reactions. When subject to oxygenation via cyclooxygenases, lipoxygenases, and cytochrome P450 monooxygenases, polyunsaturated fatty acids give rise to an array of metabolites including eicosanoids, docosanoids, and octadecanoids. These potent bioactive lipids are involved in many biochemical and signaling pathways, with inflammation being of particular importance. Moreover, because they are produced by more than one pathway and substrate, and are present in a variety of biological milieus, their analysis is not always possible with conventional assays. Liquid chromatography coupled to electrospray mass spectrometry offers a versatile and sensitive approach for the analysis of bioactive lipids, allowing specific and accurate quantitation of multiple species present in the same sample. Here we explain the principles of this approach to mediator lipidomics and present detailed protocols for the assay of enzymatically produced oxygenated metabolites of polyunsaturated fatty acids that can be tailored to answer biological questions or facilitate assessment of nutritional and pharmacological interventions.
Collapse
|
16
|
Vilella F, Ramirez LB, Simón C. Lipidomics as an emerging tool to predict endometrial receptivity. Fertil Steril 2013; 99:1100-6. [DOI: 10.1016/j.fertnstert.2012.12.026] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 12/18/2012] [Accepted: 12/19/2012] [Indexed: 01/03/2023]
|
17
|
Mosher AA, Rainey KJ, Giembycz MA, Wood S, Slater DM. Prostaglandin E2 represses interleukin 1 beta-induced inflammatory mediator output from pregnant human myometrial cells through the EP2 and EP4 receptors. Biol Reprod 2012; 87:7, 1-10. [PMID: 22517618 DOI: 10.1095/biolreprod.112.100099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Inflammatory mediators, including prostaglandins, cytokines, and chemokines, are strongly implicated in the mechanism of human labor, though their precise roles remain unknown. Here we demonstrate that interleukin 1 beta (IL-1beta) significantly increased the expression and release of interleukin-8 (CXCL8), monocyte chemotactic protein-1 (CCL2), and granulocyte macrophage colony-stimulating factor (CSF2) by primary human myometrial cells. However, this effect was repressed by prostaglandin E(2) (PGE(2)). As PGE(2) can activate four distinct PGE(2) receptors (EP(1), EP(2), EP(3), and EP(4)) to elicit various responses, we sought to define the EP receptor(s) responsible for this repression. Using selective EP receptor agonists and a selective EP(4) antagonist, we show that PGE(2) mediates the repression of IL-1beta-induced release of CXCL8, CCL2, and CSF2 via activation of the EP(2) and EP(4) receptors. The use of siRNA gene-specific knockdown further confirmed a role for both receptors. Real-time RT-PCR demonstrated that EP(2) was the most highly expressed of all four EP receptors at the mRNA level in human myometrial cells, and immunocytochemistry showed that EP(2) protein is abundantly present throughout the cells. Interestingly, PGE(2) does not appear to reduce mRNA expression of CXCL8, CCL2, and CSF2. Our results demonstrate that PGE(2) can elicit anti-inflammatory responses via activation of the EP(2) and EP(4) receptors in lower segment term pregnant human myometrial cells. Further elucidation of the EP receptor-mediated signaling pathways in the pregnant human uterus may be beneficial for optimizing the maintenance of pregnancy, induction of labor or indeed treatment of preterm labor.
Collapse
Affiliation(s)
- Andrea A Mosher
- Department of Physiology and Pharmacology, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | | | | | | |
Collapse
|
18
|
Abstract
Nutritionally important PUFAs (polyunsaturated fatty acids) mediate some of their bioactivities through formation of oxygenated metabolites. These bioactive lipids are formed by COX (cyclo-oxygenase), LOX (lipoxygenase) and cytochrome-P450-catalysed reactions, as well as non-enzymatic lipid peroxidation. These reactions produce numerous species, some of which can be formed through more than one pathway. MS-based lipidomics offers the selectivity and sensitivity required for qualitative and quantitative analysis of multiple lipid species, in a variety of biological systems, and can facilitate the study of these mediators.
Collapse
|
19
|
Berlanga O, Bradshaw H, Vilella-Mitjana F, Garrido-Gómez T, Simón C. How endometrial secretomics can help in predicting implantation. Placenta 2011; 32 Suppl 3:S271-5. [DOI: 10.1016/j.placenta.2011.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 06/01/2011] [Accepted: 06/02/2011] [Indexed: 01/06/2023]
|
20
|
Phillips RJ, Al-Zamil H, Hunt LP, Fortier MA, López Bernal A. Genes for prostaglandin synthesis, transport and inactivation are differentially expressed in human uterine tissues, and the prostaglandin F synthase AKR1B1 is induced in myometrial cells by inflammatory cytokines. Mol Hum Reprod 2010; 17:1-13. [PMID: 20595240 DOI: 10.1093/molehr/gaq057] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Prostaglandins (PGs) are important factors in the physiology of human parturition and the control of uterine contractility. We have characterized the expression of 15 genes from all stages of the PG pathway in human pregnant and non-pregnant (NP) myometrium and in other uterine tissues at delivery, and the results show patterns indicative of different capacities for PG synthesis and catabolism in each tissue. In placenta, the PG synthase expression profile favours production of PGD₂, PGE₂ and PGF₂, with high levels of PG transporters and catabolic PG dehydrogenase suggesting rapid PG turnover. Choriodecidua is primed for PGE₂, PGF₂ and PGD₂ production and high PG turnover, whereas amnion expresses genes for PGE₂ synthesis with low levels of PG transporters and dehydrogenase. In umbilical cord, PGI₂ synthase is highly expressed. In pregnant myometrium, PGI₂, PGD₂ and PGF₂ synthases are highly expressed, whereas PG dehydrogenase is underexpressed. Myometrium from women with spontaneous or induced labour had higher expression of the PGH₂ synthase PTGS2 than tissue from women not-in-labour. Myometrium from NP women had lower levels of PG synthases and higher levels of PG dehydrogenase than pregnant myometrium. Discriminant function analysis showed that expression of selected genes in myometrium could distinguish groups of women with different modes of labour from each other and from NP women. In cultured myometrial cells, there was a dose-dependent stimulatory effect of interleukin 1β and tumour necrosis factor α on PTGS2, PTGES and AKR1B1 (PGF synthase) expression.
Collapse
Affiliation(s)
- R J Phillips
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Clinical Science at South Bristol (Obstetrics and Gynaecology), University of Bristol, Dorothy Hodgkin Building, Bristol BS1 3NY, UK.
| | | | | | | | | |
Collapse
|