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Rahimi S, Rezvani N, Khazayel S, Jalilian N, Shakiba E, Khadir F, Yari K, Rahimi Z. The study of HMOX1 DNA methylation and gene expression and the diagnostic potential of miR-153-3p in preeclampsia. Epigenomics 2024; 16:389-401. [PMID: 38410927 DOI: 10.2217/epi-2023-0377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Background: The objective was to elucidate the potential epigenetic regulatory mechanism in HMOX1 expression in preeclampsia. Materials & methods: HMOX1 promoter DNA methylation was evaluated in the placental tissue and blood of preeclamptic and normotensive pregnant women. HMOX1 and miR-153-3p gene expression were assessed in placental tissue and peripheral blood mononuclear cells (PBMCs). Related microarray datasets in the Gene Expression Omnibus database were also analyzed. Results: In placental tissue, despite HMOX1 expression downregulation, there was no significant change in HMOX1 methylation. In PBMCs, there was no significant alteration in HMOX1 expression, while hypomethylation was observed in blood. The miR-153-3p expression increased in the placental tissue and in the PBMCs of preeclampsia. Conclusion: DNA methylation does not affect HMOX1 expression, while miR-153-3p might be a biomarker for preeclampsia.
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Affiliation(s)
- Somayeh Rahimi
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
| | - Nayebali Rezvani
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
| | - Saeed Khazayel
- Deputy of Research & Technology, Kermanshah University of Medical Sciences, Kermanshah, 67146-73159, Iran
| | - Nazanin Jalilian
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
| | - Ebrahim Shakiba
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
| | - Fatemeh Khadir
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
| | - Kheirollah Yari
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, 67155-1616, Iran
| | - Zohreh Rahimi
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, 67148-69914, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, 67155-1616, Iran
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Zhang QL, Li P, Hong L, Li RZ, Wang JQ, Cui X. The protein tyrosine kinase inhibitor genistein suppresses hypoxia-induced atrial natriuretic peptide secretion mediated by the PI3K/Akt-HIF-1α pathway in isolated beating rat atria. Can J Physiol Pharmacol 2021; 99:1184-1190. [PMID: 34612711 DOI: 10.1139/cjpp-2020-0503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Genistein, an isoflavonoid that can inhibit protein tyrosine kinase (PTK) phosphorylation, has been shown to play pivotal roles in the signal transduction pathways of hypoxic disorders. In this study, we established a rat model of isolated beating atrium and investigated the regulator role of genistein and its downstream signaling pathways in acute hypoxia-induced atrial natriuretic peptide (ANP) secretion. Radioimmunoassay was used to detect the ANP content in the atrial perfusates. Western blot analysis was used to determine the protein level of hypoxia-inducible factor 1α (HIF-1α), and GATA4 in the atrial tissue. The results showed that acute hypoxia substantially promoted ANP secretion, whereas this effect was partly attenuated by the PTKs inhibitor genistein (3 μM). By Western blotting analysis, we found that hypoxia-induced increase in phosphorylation of Akt and transcriptional factors, including HIF-1α, were also reversed by genistein. The perfused HIF-1α inhibitors rotenone (0.5 μM) or CAY10585 (10 μM) plus genistein significantly abolished the enhanced ANP section induced by hypoxia. Additionally, the perfused PI3K/Akt agonist insulin-like growth factor 1 (30 μM) also abolished ANP secretion induced by genistein and inhibited expression of HIF-1α. In summary, our data suggested that acute hypoxia markedly increased ANP secretion by PTKs through the phosphoinositide-3 kinase (PI3K)/HIF-1α dependent pathway.
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Affiliation(s)
- Qiu-Li Zhang
- Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ping Li
- Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lan Hong
- Department of Physiology, School of Medical Sciences, Yanbian University, Yanji, China
| | - Rui-Zhuang Li
- Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jia-Qi Wang
- Affiliated Hospital of Inner Mongolia University for the Nationalities, Tongliao, Neimenggu, China
| | - Xun Cui
- Department of Physiology, School of Medical Sciences, Yanbian University, Yanji, China
- Key Laboratory of Organism Functional Factors of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, China
- Cellular Function Research Center, Yanbian University, Yanji, China
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Olaniyi KS, Moodley J, Mahabeer Y, Mackraj I. Placental Microbial Colonization and Its Association With Pre-eclampsia. Front Cell Infect Microbiol 2020; 10:413. [PMID: 32903432 PMCID: PMC7434969 DOI: 10.3389/fcimb.2020.00413] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 07/06/2020] [Indexed: 12/16/2022] Open
Abstract
The existence and role of the microbiome in regulating physiological and pathophysiological conditions including metabolism, energy homeostasis, immune tolerance, behavior, obesity, diabetes, and cardiovascular-related diseases is of immense interest. It is now clear that the human placenta is not sterile, but rather colonized with microbes. The placental and vaginal microbiomes are distinct however, the placental microbiome is comparable with the oral microbiome, with a limited variation when compared with the gut microbiome. Pre-eclampsia (PE), a pregnancy-specific hypertensive disorder, remains the leading cause of maternal-fetal morbidity and mortality. This is largely due to the lack of a clear etiology of PE and consequently, diagnostic strategies, and treatment are sub-optimal. The present review focuses on the current understanding of the placental microbiome and its implication in the etiology of PE. It provides a perspective on the alteration of placental microbiome as a possible therapeutic approach in the prevention and management of PE.
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Affiliation(s)
- Kehinde S Olaniyi
- Nelson R. Mandela School of Medicine, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Jagidesa Moodley
- Women's Health and HIV Research Group, Nelson R. Mandela School of Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Yesholata Mahabeer
- Department of Medical Microbiology, National Health Laboratory Service, University of KwaZulu-Natal, Durban, South Africa.,Department of Microbiology, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Irene Mackraj
- Nelson R. Mandela School of Medicine, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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Chau K, Xu B, Hennessy A, Makris A. Effect of Placental Growth Factor on Trophoblast-Endothelial Cell Interactions In Vitro. Reprod Sci 2020; 27:1285-1292. [PMID: 32016802 DOI: 10.1007/s43032-019-00103-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 11/10/2019] [Indexed: 12/26/2022]
Abstract
Placental growth factor (PlGF) is an important angiogenic factor which has an emerging role in the clinical management of suspected preeclampsia. The role of PlGF in normal placental development is not completely understood and it is uncertain whether PlGF influences trophoblast and endothelial cell interactions central to uterine spiral artery remodelling, especially in variable oxygen conditions. A two-cell model of endovascular invasion was used. Tissue culture plates were coated with Matrigel™, on which fluorescent-labelled uterine microvascular endothelial cells (1 × 105/well) and HTR8/SVNeo cells were co-cultured (1 × 105/well) for 20 h. Co-cultures were treated with recombinant human PlGF (rhPlGF) (10 or 100 ng/mL) and incubated at either 21% O2 or 2% O2. Images were captured by fluorescence microscopy and analysed using ImageJ (n = 7). Data was analysed using SPSSv24. Treatment with rhPlGF did not improve integration in co-cultures irrespective of oxygen conditions but increased proliferation in 2% O2 of both trophoblast and endothelial cells. Expression of angiogenic factors VEGF, sFLT-1, PlGF and CXCL12 in both co-cultures and in isolated trophoblast cells was not altered by rhPlGF treatment. Expression of TLR-3 mRNA in co-cultures was increased by rhPlGF 100 ng/mL at 21% O2 (p = 0.03). PlGF contributes to trophoblast and endothelial cell proliferation in the setting of physiological hypoxia but does not influence trophoblast and endothelial cell interactions in an in vitro model of spiral artery remodelling. Upregulation of TLR-3 expression in co-cultures may indicate a role for PlGF in the placental inflammatory response.
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Affiliation(s)
- K Chau
- Vascular Immunology Group, Heart Research Institute, Sydney, Australia. .,School of Medicine, Western Sydney University, Sydney, Australia. .,Regional Dialysis Centre, Blacktown Hospital, Blacktown, Australia.
| | - B Xu
- Vascular Immunology Group, Heart Research Institute, Sydney, Australia
| | - A Hennessy
- Vascular Immunology Group, Heart Research Institute, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
| | - A Makris
- Vascular Immunology Group, Heart Research Institute, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia.,Renal Department, Liverpool Hospital, Liverpool, Australia
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Abstract
Preeclampsia (PE) is one of the leading causes of maternal morbidity and mortality worldwide. This disease is believed to occur in two stages with placental dysfunction in early pregnancy leading to maternal clinical findings after 20 weeks of gestation, as consequence of systemic inflammation, oxidative stress, and endothelial dysfunction. Much evidence suggests that PE women display an overshooting inflammatory response throughout pregnancy due to an unbalanced regulation of innate and adaptive immune responses. Recently, it has been suggested that dysregulation of endogenous protective pathways might be associated with PE etiopathogenesis. Resolution of inflammation is an active process coordinated by mediators from diverse nature that regulate key cellular events to restore tissue homeostasis. Inadequate or insufficient resolution of inflammation is believed to play an important role in the development of chronic inflammatory diseases, like PE. In this narrative review, we discuss possible pro-resolution pathways that might be compromised in PE women, which could be targets to novel therapeutic strategies in this disease.
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Modulatory Mechanism of Polyphenols and Nrf2 Signaling Pathway in LPS Challenged Pregnancy Disorders. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8254289. [PMID: 29138679 PMCID: PMC5613688 DOI: 10.1155/2017/8254289] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/16/2017] [Indexed: 12/16/2022]
Abstract
Early embryonic loss and adverse birth outcomes are the major reproductive disorders that affect both human and animals. The LPS induces inflammation by interacting with robust cellular mechanism which was considered as a plethora of numerous reproductive disorders such as fetal resorption, preterm birth, teratogenicity, intrauterine growth restriction, abortion, neural tube defects, fetal demise, and skeletal development retardation. LPS-triggered overproduction of free radicals leads to oxidative stress which mediates inflammation via stimulation of NF-κB and PPARγ transcription factors. Flavonoids, which exist in copious amounts in nature, possess a wide array of functions; their supplementation during pregnancy activates Nrf2 signaling pathway which encounters pregnancy disorders. It was further presumed that the development of strong antioxidant uterine environment during gestation can alleviate diseases which appear at adult stages. The purpose of this review is to focus on modulatory properties of flavonoids on oxidative stress-mediated pregnancy insult and abnormal outcomes and role of Nrf2 activation in pregnancy disorders. These findings would be helpful for providing new insights in ameliorating oxidative stress-induced pregnancy disorders.
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Luizon MR, Caldeira-Dias M, Deffune E, Fernandes KS, Cavalli RC, Tanus-Santos JE, Sandrim VC. Antihypertensive therapy in pre-eclampsia: effects of plasma from nonresponsive patients on endothelial gene expression. Pharmacogenomics 2016; 17:1121-1127. [DOI: 10.2217/pgs-2016-0033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Over 40% of patients with pre-eclampsia are nonresponsive to antihypertensive therapy, but the underlying mechanisms are unknown. We examined the effects of plasma from nonresponsive and responsive patients on endothelial gene expression. Patients & methods: PCR array was performed in human umbilical vein endothelial cells (HUVEC) incubated with plasma from nonresponsive (n = 4) and responsive (n = 4) patients. Gene networks and interactions with antihypertensive drugs used in pre-eclampsia were identified by Ingenuity Pathway Analysis. Results: Nifedipine and hydralazine act by upregulate or downregulate genes found to be downregulated or upregulated in HUVEC incubated with plasma from nonresponsive patients. Conclusion: Our novel findings suggest that plasma from nonresponsive and responsive patients evoke different responses in HUVEC, and might advance the pharmacogenomics research in pre-eclampsia.
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Affiliation(s)
- Marcelo R Luizon
- Department of Pharmacology, Institute of Biosciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP 18618-000, Brazil
| | - Mayara Caldeira-Dias
- Department of Pharmacology, Institute of Biosciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP 18618-000, Brazil
| | - Elenice Deffune
- Blood Transfusion Center, Cell Engineering Laboratory, Botucatu Medical School, Universidade Estadual Paulista (UNESP), Botucatu, SP 18618-000, Brazil
| | - Karla S Fernandes
- Nucleo de Pos-Graduação e Pesquisa, Santa Casa de Belo Horizonte, Belo Horizonte, MG 30150-240, Brazil
| | - Ricardo C Cavalli
- Department of Gynecology & Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - José E Tanus-Santos
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Valéria C Sandrim
- Department of Pharmacology, Institute of Biosciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP 18618-000, Brazil
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Chapple SJ, Puszyk WM, Mann GE. Keap1-Nrf2 regulated redox signaling in utero: Priming of disease susceptibility in offspring. Free Radic Biol Med 2015; 88:212-220. [PMID: 26279476 DOI: 10.1016/j.freeradbiomed.2015.08.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/25/2015] [Accepted: 08/06/2015] [Indexed: 12/30/2022]
Abstract
Intrauterine exposure to gestational diabetes, pre-eclampsia or intrauterine growth restriction alters the redox status of the developing fetus. Such pregnancy-related diseases in most cases do not have a readily identifiable genetic cause, and epigenetic 'priming' mechanisms in utero may predispose both mother and child to later-life onset of cardiovascular and metabolic diseases. The concept of 'fetal programing' or 'developmental priming' and its association with an increased risk of disease in childhood or adulthood has been reviewed extensively. This review focuses on adaptive changes in the in utero redox environment during normal pregnancy and the consequences of alterations in redox control associated with pregnancies characterized by oxidative stress. We evaluate the evidence that the Keap1-Nrf2 pathway is important for protecting the fetus against adverse conditions in utero and may itself be subject to epigenetic priming, potentially contributing to an increased risk of vascular disease and insulin resistance in later life.
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Affiliation(s)
- Sarah J Chapple
- Cardiovascular Division, British Heart Foundation of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London SE1 9NH, UK
| | - William M Puszyk
- Cardiovascular Division, British Heart Foundation of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London SE1 9NH, UK
| | - Giovanni E Mann
- Cardiovascular Division, British Heart Foundation of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London SE1 9NH, UK.
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Spradley FT, Palei AC, Granger JP. Increased risk for the development of preeclampsia in obese pregnancies: weighing in on the mechanisms. Am J Physiol Regul Integr Comp Physiol 2015; 309:R1326-43. [PMID: 26447211 DOI: 10.1152/ajpregu.00178.2015] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/28/2015] [Indexed: 11/22/2022]
Abstract
Preeclampsia (PE) is a pregnancy-specific disorder typically presenting as new-onset hypertension and proteinuria. While numerous epidemiological studies have demonstrated that obesity increases the risk of PE, the mechanisms have yet to be fully elucidated. Growing evidence from animal and human studies implicate placental ischemia in the etiology of this maternal syndrome. It is thought that placental ischemia is brought about by dysfunctional cytotrophoblast migration and invasion into the uterus and subsequent lack of spiral arteriole widening and placental perfusion. Placental ischemia/hypoxia stimulates the release of soluble placental factors into the maternal circulation where they cause endothelial dysfunction, particularly in the kidney, to elicit the clinical manifestations of PE. The most recognized of these factors are the anti-angiogenic sFlt-1 and pro-inflammatory TNF-α and AT1-AA, which promote endothelial dysfunction by reducing levels of the provasodilator nitric oxide and stimulating production of the potent vasoconstrictor endothelin-1 and reactive oxygen species. We hypothesize that obesity-related metabolic factors increase the risk for developing PE by impacting various stages in the pathogenesis of PE, namely, 1) cytotrophoblast migration and placental ischemia; 2) release of soluble placental factors into the maternal circulation; and 3) maternal endothelial and vascular dysfunction. This review will summarize the current experimental evidence supporting the concept that obesity and metabolic factors like lipids, insulin, glucose, and leptin affect placental function and increase the risk for developing hypertension in pregnancy by reducing placental perfusion; enhancing placental release of soluble factors; and by increasing the sensitivity of the maternal vasculature to placental ischemia-induced soluble factors.
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Affiliation(s)
- Frank T Spradley
- Department of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi
| | - Ana C Palei
- Department of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi
| | - Joey P Granger
- Department of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi
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