1
|
Li Y, Guo Y, Wu D, Ai L, Wu R, Ping Z, Zhu K. Phenylbutyric acid inhibits hypoxia-induced trophoblast apoptosis and autophagy in preeclampsia via the PERK/ATF-4/CHOP pathway. Mol Reprod Dev 2024; 91:e23742. [PMID: 38644727 DOI: 10.1002/mrd.23742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/13/2024] [Accepted: 03/24/2024] [Indexed: 04/23/2024]
Abstract
Preeclampsia (PE) is a common pregnancy complication with a high mortality rate. Abnormally activated endoplasmic reticulum stress (ERS) is believed to be responsible for the destruction of key placental cells-trophoblasts. Phenylbutyric acid (4-PBA), an ERS inhibitor, is involved in regulating the development of ERS-related diseases. At present, how 4-PBA affects trophoblasts and its mechanisms is still unclear. In this study, PE cell models were established by stimulating HTR-8/SVneo cells with hypoxia. To verify the underlying mechanisms of 4-PBA on PE, CCT020312, an activator of PERK, was also used. The results showed that 4-PBA restored hypoxia-induced trophoblast viability, inhibited HIF-1α protein expression, inflammation, and PERK/ATF-4/CHOP pathway. Hoechst 33342 staining and flow cytometry results confirmed that 4-PBA decreased hypoxia-induced apoptosis in trophoblasts. The results of the JC-1 analysis and apoptosis initiation enzyme activity assay also demonstrated that 4-PBA inhibited apoptosis related to the mitochondrial pathway. Furthermore, by detecting autophagy in trophoblasts, an increased number of autophagic vesicles, damaged mitochondria, enhanced dansylcadaverine fluorescence, enhanced levels of autophagy proteins Beclin-1, LC3II, and decreased p62 were seen in hypoxia-stimulated cells. These changes were reversed by 4-PBA. Furthermore, it was observed that CCT020312 reversed the effects of 4-PBA on the viability, apoptosis, and autophagosome number of hypoxia-induced trophoblasts. In summary, 4-PBA reduces autophagy and apoptosis via the PERK/ATF-4/CHOP pathway and mitochondrial pathway, thereby restoring the viability of hypoxic trophoblasts. These findings provide a solid evidence base for the use of 4-PBA in PE treatment and guide a new direction for improving the outcomes of patients with PE.
Collapse
Affiliation(s)
- Yinfeng Li
- Department of ICU, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Yongjie Guo
- Department of ICU, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Dan Wu
- Department of ICU, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Ling Ai
- Department of Obstetrics, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Rongrong Wu
- Department of Laboratory, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Zepeng Ping
- Department of Obstetrics, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| | - Kangyuan Zhu
- Department of ICU, Jiaxing Maternity and Children Health Care Hospital, Jiaxing, Zhejiang, China
| |
Collapse
|
2
|
Alencar AKN, Swan KF, Pridjian G, Lindsey SH, Bayer CL. Connecting G protein-coupled estrogen receptor biomolecular mechanisms with the pathophysiology of preeclampsia: a review. Reprod Biol Endocrinol 2023; 21:60. [PMID: 37393260 DOI: 10.1186/s12958-023-01112-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/20/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Throughout the course of pregnancy, small maternal spiral arteries that are in contact with fetal tissue undergo structural remodeling, lose smooth muscle cells, and become less responsive to vasoconstrictors. Additionally, placental extravillous trophoblasts invade the maternal decidua to establish an interaction between the fetal placental villi with the maternal blood supply. When successful, this process enables the transport of oxygen, nutrients, and signaling molecules but an insufficiency leads to placental ischemia. In response, the placenta releases vasoactive factors that enter the maternal circulation and promote maternal cardiorenal dysfunction, a hallmark of preeclampsia (PE), the leading cause of maternal and fetal death. An underexplored mechanism in the development of PE is the impact of membrane-initiated estrogen signaling via the G protein-coupled estrogen receptor (GPER). Recent evidence indicates that GPER activation is associated with normal trophoblast invasion, placental angiogenesis/hypoxia, and regulation of uteroplacental vasodilation, and these mechanisms could explain part of the estrogen-induced control of uterine remodeling and placental development in pregnancy. CONCLUSION Although the relevance of GPER in PE remains speculative, this review provides a summary of our current understanding on how GPER stimulation regulates some of the features of normal pregnancy and a potential link between its signaling network and uteroplacental dysfunction in PE. Synthesis of this information will facilitate the development of innovative treatment options.
Collapse
Affiliation(s)
| | - Kenneth F Swan
- Department of Obstetrics & Gynecology, Tulane University, New Orleans, LA, 70112, USA
| | - Gabriella Pridjian
- Department of Obstetrics & Gynecology, Tulane University, New Orleans, LA, 70112, USA
| | - Sarah H Lindsey
- Department of Pharmacology, Tulane University, New Orleans, LA, 70112, USA
| | - Carolyn L Bayer
- Department of Biomedical Engineering, Tulane University, 500 Lindy Boggs Center, New Orleans, LA, 70118, USA.
| |
Collapse
|
3
|
Wang H, Liu M, Chu C, Yu S, Li J, Shen H, Meng Q, Zhang T. Paeonol alleviates placental inflammation and apoptosis in preeclampsia by inhibiting the JAK2/STAT3 signaling pathway. Kaohsiung J Med Sci 2022; 38:1103-1112. [DOI: 10.1002/kjm2.12585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/07/2022] [Accepted: 07/31/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- Huan Wang
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Mei‐Lin Liu
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Chu Chu
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Shi‐Jiao Yu
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Jing Li
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Hai‐Chuan Shen
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Qian Meng
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| | - Teng Zhang
- Department of Obstetrics Lianyungang Maternal and Child Health Hospital Lianyungang Jiangsu China
| |
Collapse
|
4
|
Du Y, Cai Z, Zhou G, Liang W, Man Q, Wang W. Perfluorooctanoic acid exposure increases both proliferation and apoptosis of human placental trophoblast cells mediated by ER stress-induced ROS or UPR pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 236:113508. [PMID: 35427876 DOI: 10.1016/j.ecoenv.2022.113508] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Perfluorooctanoate acid (PFOA) is a highly persistent and widespread chemical in the environment. PFOA serum levels in pregnant women are positively associated with an increased risk of placenta-related disorders. However, the mechanism of PFOA cytotoxicity involved in placental cells and cellular responses such as ER stress remains poorly understood. In this study, we studied the cellular toxicity of PFOA with a focus on proliferation and apoptosis in a human placental trophoblast cell line. Cell viability, number, apoptosis, stress response, activation of the involved signaling pathways were assessed. Our results showed PFOA affected cell viability, proliferation and also resulted in apoptosis. Besides, both pro-proliferation and pro-apoptosis effects were attenuated by endoplasmic reticulum (ER) stress inhibitors. Further experiments demonstrated that two different signaling pathways were activated by PFOA-induced ER stress and involved in PFOA toxicity: the reactive oxygen species (ROS)-dependent ERK signaling triggered trophoblast proliferation, while the ATF4-dependent C/EBP homologous protein (CHOP) signaling was the trigger of apoptosis. We conclude that PFOA-induced ER stress is the trigger of proliferation and apoptosis of trophoblast via ROS or UPR signaling pathway, which leads to the altered balance critical to the normal development and function of the placenta.
Collapse
Affiliation(s)
- Yatao Du
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200292, China
| | - Zhenzhen Cai
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200292, China
| | - Guangdi Zhou
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200292, China
| | - Wei Liang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200292, China
| | - Qiuhong Man
- Department of Clinical Laboratory, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
| | - Weiye Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200292, China.
| |
Collapse
|
5
|
Pregnancy Achievement by Medical Assisted Reproduction Is Correlated to the G Protein-Coupled Receptor 30 mRNA Abundance in Human Spermatozoa. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Estrogens, specifically 17β-estradiol (E2), play an important role in male health, including male fertility. The G protein-coupled receptor for estrogen 30 (GPR30) is essential for mediating the rapid non-genomic effects of E2 on a variety of testicular cells, including spermatozoa, although its molecular effects remain largely unknown. In this work, we hypothesized that the GPR30 mRNA abundance in spermatozoa could be correlated to sperm quality. Sperm GPR30 mRNA could also be carried into the oocyte, potentially impacting embryo development and the success of a pregnancy. For this study, 81 sperm samples were collected from couples seeking fertility treatment and undergoing medically assisted reproduction treatments (ART), following the World Health Organization guidelines. GPR30 mRNA abundance in spermatozoa was assessed with a quantitative polymerase chain reaction. The resulting data show that there is no correlation between the abundance of the GPR30 transcript with paternal BMI, age, or sperm quality parameters. Interestingly, we observed that higher levels of GPR30 mRNA abundance in spermatozoa were related to the achievement of biochemical pregnancy and clinical pregnancy (p < 0.05) by couples undergoing treatment. These results highlight the role of the sperm’s RNA cargo in offspring development, suggesting that spermatozoa mRNA content can influence ART success.
Collapse
|
6
|
Valenzuela-Melgarejo FJ, Lagunas C, Carmona-Pastén F, Jara-Medina K, Delgado G. Supraphysiological Role of Melatonin Over Vascular Dysfunction of Pregnancy, a New Therapeutic Agent? Front Physiol 2021; 12:767684. [PMID: 34867473 PMCID: PMC8635235 DOI: 10.3389/fphys.2021.767684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/07/2021] [Indexed: 11/25/2022] Open
Abstract
Hypertension can be induced by the disruption of factors in blood pressure regulation. This includes several systems such as Neurohumoral, Renin-angiotensin-aldosterone, the Circadian clock, and melatonin production, which can induce elevation and non-dipping blood pressure. Melatonin has a supraphysiological role as a chronobiotic agent and modulates vascular system processes via pro/antiangiogenic factors, inflammation, the immune system, and oxidative stress regulation. An elevation of melatonin production is observed during pregnancy, modulating the placenta and fetus’s physiological functions. Their impairment production can induce temporal desynchronization of cell proliferation, differentiation, or invasion from trophoblast cells results in vascular insufficiencies, elevating the risk of poor fetal/placental development. Several genes are associated with vascular disease and hypertension during pregnancy via impaired inflammatory response, hypoxia, and oxidative stress, such as cytokines/chemokines IL-1β, IL-6, IL-8, and impairment expression in endothelial cells/VSMCs of HIF1α and eNOS genes. Pathological placentas showed differentially expressed genes (DEG), including vascular genes as CITED2, VEGF, PL-II, PIGF, sFLT-1, and sENG, oncogene JUNB, scaffolding protein CUL7, GPER1, and the pathways of SIRT/AMPK and MAPK/ERK. Additionally, we observed modification of subunits of NADPH oxidase and extracellular matrix elements, i.e., Glypican and Heparanase and KCa channel. Mothers with a low level of melatonin showed low production of proangiogenic factor VEGF, increasing the risk of preeclampsia, premature birth, and abortion. In contrast, melatonin supplementation can reduce systolic pressure, prevent oxidative stress, induce the activation of the antioxidants system, and lessen proteinuria and serum level of sFlt-1. Moreover, melatonin can repair the endothelial damage from preeclampsia at the placenta level, increasing PIGF, Nrf-2, HO-1 production and reducing critical markers of vascular injury during the pregnancy. Melatonin also restores the umbilical and uterine blood flow after oxidative stress and inhibits vascular inflammation and VCAM-1, Activin-A, and sEng production. The beneficial effects of melatonin over pathological pregnancies can be partially observed in normal pregnancies, suggesting the dual role of/over placental physiology could contribute to protection and have therapeutic applications in vascular pathologies of pregnancies in the future.
Collapse
Affiliation(s)
- Francisco J Valenzuela-Melgarejo
- Laboratory of Molecular Cell Biology, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Chillán, Chile
| | - Constanza Lagunas
- Laboratory of Molecular Cell Biology, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Chillán, Chile
| | - Fabiola Carmona-Pastén
- Laboratory of Molecular Cell Biology, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Chillán, Chile
| | - Kevins Jara-Medina
- Laboratory of Molecular Cell Biology, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Chillán, Chile
| | - Gustavo Delgado
- Laboratory of Molecular Cell Biology, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Chillán, Chile
| |
Collapse
|
7
|
Kasture V, Sundrani D, Randhir K, Wagh G, Joshi S. Placental apoptotic markers are associated with placental morphometry. Placenta 2021; 115:1-11. [PMID: 34534910 DOI: 10.1016/j.placenta.2021.08.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 08/03/2021] [Accepted: 08/17/2021] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Preeclampsia is a hypertensive disorder affecting both mother and the fetus and is a major cause of maternal and neonatal morbidity and mortality. Abnormal placentation is a common feature in preeclampsia that contributes to placental dysfunction. It is likely that increased homocysteine and oxidative stress influence apoptosis in preeclampsia. Increased placental apoptosis may aggravate the symptoms of preeclampsia through disruption of the placental structure. The current study aims to examine the association between various placental apoptotic markers with placental dimensions and maternal and neonatal characteristics in women with preeclampsia. METHODS A total of 80 pregnant women [preeclampsia (n = 40); normotensive control (n = 40)] were included in the study. Placental characteristics such as its major axis, minor axis, breadth, thickness (at centre, cord insertion and periphery) and trimmed placental weight were recorded.Placental protein levels of caspase-3, caspase-8, BAX and Bcl-2 were estimated by ELISA and gene expression were examined by real time quantitative PCR. RESULT Protein levels of proapoptotic markers such as caspase-8 and 3 were higher (p < 0.01) in the preeclampsia group compared to control whereas, the level of antiapoptotic marker Bcl-2 (p < 0.05) was lower in the preeclampsia group. Caspase-3 and Bcl-2 protein levels were negatively associated with thickness of placenta at cord insertion (p < 0.01). Protein levels of caspase-8 and caspase-3 were positively associated with placental MDA levels (p < 0.01). Caspase-8 was negatively associated with baby length (p = 0.055). DISCUSSION This study demonstrates the association of various apoptotic markers with oxidative stress and placental dimensions.
Collapse
Affiliation(s)
- Vaishali Kasture
- Department of Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Deepali Sundrani
- Department of Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Karuna Randhir
- Department of Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Girija Wagh
- Department of Obstetrics and Gynaecology, Bharati Medical College and Hospital, Bharati Vidyapeeth University, Pune, 411043, India
| | - Sadhana Joshi
- Department of Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India.
| |
Collapse
|
8
|
Liang X, Liu Y, Chen L, Chen S. The natural compound puerarin alleviates inflammation and apoptosis in experimental cell and rat preeclampsia models. Int Immunopharmacol 2021; 99:108001. [PMID: 34311188 DOI: 10.1016/j.intimp.2021.108001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/08/2021] [Accepted: 07/18/2021] [Indexed: 11/29/2022]
Abstract
Puerarin (Pue), an isoflavone derived from Radix puerariae, exerts anti-apoptosis and anti-inflammatory effects. However, the protective effect of Pue on PE is still unknown. The present study aimed to investigate whether Pue alleviates symptoms of PE and suppresses inflammation and apoptosis in vitro and in vivo. A cell model of PE was established by exposing HTR8/SVneo cells to LPS and an RNA-SEQ study was performed in LPS-stimulated HTR8/SVneo cells. We also established a rat model of PE by injecting pregnant rats with LPS and the basic preeclamptic symptoms were evaluated. Additionally, the placental histology, placental inflammation cytokines, and apoptosis markers were also measured. Pue protected HTR8/SVneo cells from LPS-evoked cytotoxicity, decreased the levels of sFlt-1, ET-1, and tPA in HTR8/SVneo cells. RNA-SEQ results revealed the significant changes in the expression levels of hub genes (TNF, IL-6, Jun, and NFKBIA) related to multiple inflammatory pathways, including the TNF signaling pathway, IL-17 signaling pathway, inflammatory disease, and NF-κB signaling pathway. After administration of Pue, we observed that LPS-evoked PE symptoms (hypertension, proteinuria, and fetal growth restriction), were reversed. Besides, Pue improved placental pathology change and reducing placental sFlt-1, ET-1, and tPA mRNA expression. Abnormal placental inflammatory cytokines (TNF, IL-6, IFN-γ, and IL-4) and apoptosis markers (Bcl-2, Bax, caspase-3, caspase-8, and caspase-9) expressions in the LPS-treated group were reversed after Pue treatment. Our findings revealed that Pue plays beneficial roles in PE models, and therefore possesses the therapeutic potential for prevention and treatment of PE.
Collapse
Affiliation(s)
- Xiaoping Liang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of University of Science and Technology of China Anhui Provincial Hospital, Hefei City, Anhui Province 230001, PR China
| | - Yujie Liu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of University of Science and Technology of China Anhui Provincial Hospital, Hefei City, Anhui Province 230001, PR China
| | - Ling Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of University of Science and Technology of China Anhui Provincial Hospital, Hefei City, Anhui Province 230001, PR China
| | - Suyu Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of University of Science and Technology of China Anhui Provincial Hospital, Hefei City, Anhui Province 230001, PR China.
| |
Collapse
|
9
|
Shu C, Han S, Xu P, Wang Y, Cheng T, Hu C. Estrogen and Preeclampsia: Potential of Estrogens as Therapeutic Agents in Preeclampsia. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:2543-2550. [PMID: 34163140 PMCID: PMC8214522 DOI: 10.2147/dddt.s304316] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022]
Abstract
There is a significant decline in the estrogen levels in preeclampsia, and exogenous administration of estradiol normalizes blood pressure and other associated symptoms of preeclampsia. The decrease in estrogen levels may be due to changes in enzyme activities of hydroxysteroid (17-β) dehydrogenase 1, aromatase, and COMT. There is also a decrease in the novel, estrogenic G-protein-coupled receptor 30 (GPR30) in the placental trophoblast cells in preeclampsia. The activation of GPR30 protects the placenta from hypoxia-reoxygenation injury, decreases apoptosis and increases proliferation through eNOS and PI3K-Akt signaling pathways. Estrogens may also increase Ca2+-activated K+ channel function, decrease the release of inflammatory cytokines, and oxidative stress to improve placental perfusion. Both preclinical and clinical studies show the decrease in the 2-methoxyestradiol levels in preeclampsia, which may be due to a decrease in estradiol itself along with a decrease in the enzymatic actions of the COMT enzyme. 2-Methoxyestradiol activates HIF1α and vascular endothelial growth factor receptors (VEGFR-2) to maintain placental perfusion by increasing angiogenesis. The present review discusses the preclinical and clinical studies describing the role of estrogen in preeclampsia along with possible mechanisms.
Collapse
Affiliation(s)
- Chang Shu
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, People's Republic of China
| | - Shumei Han
- Department of Medical Administration, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Peng Xu
- Department of Sports Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Ying Wang
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, People's Republic of China
| | - Tingting Cheng
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, People's Republic of China
| | - Cong Hu
- Reproductive Center, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| |
Collapse
|
10
|
Hirschi KM, Tsai KYF, Davis T, Clark JC, Knowlton MN, Bikman BT, Reynolds PR, Arroyo JA. Growth arrest-specific protein-6/AXL signaling induces preeclampsia in rats†. Biol Reprod 2021; 102:199-210. [PMID: 31347670 DOI: 10.1093/biolre/ioz140] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 07/06/2019] [Accepted: 07/21/2019] [Indexed: 12/19/2022] Open
Abstract
Preeclampsia (PE) is a complicated obstetric complication characterized by increased blood pressure, decreased trophoblast invasion, and inflammation. The growth arrest-specific 6 (Gas6) protein is known to induce dynamic cellular responses and is elevated in PE. Gas6 binds to the AXL tyrosine kinase receptor and AXL-mediated signaling is implicated in proliferation and migration observed in several tissues. Our laboratory utilized Gas6 to induce preeclamptic-like conditions in pregnant rats. Our objective was to determine the role of Gas6/AXL signaling as a possible model of PE. Briefly, pregnant rats were divided into three groups that received daily intraperitoneal injections (from gestational day 7.5 to 17.5) of phosphate buffered saline (PBS), Gas6, or Gas6 + R428 (an AXL inhibitor administered from gestational day 13.5 to 17.5). Animals dispensed Gas6 experienced elevated blood pressure, increased proteinuria, augmented caspase-3-mediated placental apoptosis, and diminished trophoblast invasion. Gas6 also enhanced expression of several PE-related genes and a number of inflammatory mediators. Gas6 further enhanced placental oxidative stress and impaired mitochondrial respiration. Each of these PE-related characteristics was ameliorated in dams and/or their placentae when AXL inhibition by R428 occurred in tandem with Gas6 treatment. We conclude that Gas6 signaling is capable of inducing PE and that inhibition of AXL prevents disease progression in pregnant rats. These results provide insight into pathways associated with PE that could be useful in the clarification of potential therapeutic approaches.
Collapse
Affiliation(s)
- Kelsey M Hirschi
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Kary Y F Tsai
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Taylor Davis
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - J Christian Clark
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - M Nekel Knowlton
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Benjamin T Bikman
- Laboratory of Obesity and Metabolism, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Paul R Reynolds
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Juan A Arroyo
- Lung and Placenta Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| |
Collapse
|
11
|
Wang C, Jin E, Deng J, Pei Y, Ren M, Hu Q, Gu Y, Li S. GPR30 mediated effects of boron on rat spleen lymphocyte proliferation, apoptosis, and immune function. Food Chem Toxicol 2020; 146:111838. [PMID: 33137424 DOI: 10.1016/j.fct.2020.111838] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 11/17/2022]
Abstract
Supplementing different quantities of boron can significantly affect immune function in rat spleen, but the mechanism of action behind this effect remains unclear. Our purpose was to study the involvement of the estrogen membrane receptor GPR30 in the effect of boron on the proliferation, apoptosis, and immune function of rat spleen lymphocytes. Results showed that the addition of 0.4 mmol/L boron had a beneficial effect on the immune function and proliferation of spleen lymphocytes, but the addition of 40 mmol/L boron had opposite effect. After using G-15 to selectively inhibit GPR30, the proportions of CD4+ and CD8+ T cells, the content of IL-2 and IFN-γ, and the expression of PCNA protein were significantly decreased, while lymphocyte apoptosis rate increased significantly (p < 0.05 or p < 0.01). After G-15 treatment, the addition of 0.4 mmol/L boron had no effects on T cell subsets, lymphocyte proliferation, PCNA protein expression, and IgG and cytokine content (P > 0.05), while the addition of 40 mmol/L boron did not change the effects on lymphocyte subsets, proliferation and apoptosis. The results suggested that GPR30 mediates the effects of 0.4 mmol/L boron boron on the proliferation, apoptosis and immune function of spleen lymphocytes.
Collapse
Affiliation(s)
- Chenfang Wang
- College of Life and Health Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Erhui Jin
- College of Animal Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Juan Deng
- College of Animal Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Yaqiong Pei
- College of Animal Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Man Ren
- College of Animal Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Qianqian Hu
- College of Animal Science, Anhui Science and Technology University, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Youfang Gu
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| | - Shenghe Li
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, No. 9, Donghua Road, Fengyang, Chuzhou, Anhui, 233100, People's Republic of China.
| |
Collapse
|
12
|
Kasture V, Kale A, Randhir K, Sundrani D, Joshi S. Effect of maternal omega-3 fatty acids and vitamin E supplementation on placental apoptotic markers in rat model of early and late onset preeclampsia. Life Sci 2019; 239:117038. [PMID: 31730868 DOI: 10.1016/j.lfs.2019.117038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/23/2019] [Accepted: 10/31/2019] [Indexed: 12/19/2022]
Abstract
AIM Disturbed placentation results in pregnancy complications like preeclampsia. Placental development is influenced by apoptosis during trophoblast differentiation and proliferation. Increased oxidative stress upregulates placental apoptosis. We have earlier reported increased oxidative stress, lower omega-3 fatty acids and vitamin E levels in women with preeclampsia. Current study examines effect of maternal omega-3 fatty acids and vitamin E supplementation on apoptotic markers across gestation in a rat model of preeclampsia. MAIN METHODS Pregnant Wistar rats were randomly assigned to control; early onset preeclampsia (EOP); late onset preeclampsia (LOP); early onset preeclampsia + omega-3 fatty acid + vitamin E supplementation (EOP + O + E) and late onset preeclampsia + omega-3 fatty acid + vitamin E supplementation (LOP + O + E) groups. Animals (Control, EOP, EOP + O + E) were sacrificed at d14 and d20 of gestation while animals (LOP, LOP + O + E) were sacrificed at d20 to collect blood and placentae. Protein and mRNA levels of apoptotic markers were analyzed by ELISA and RT-PCR respectively. KEY FINDINGS Protein levels of proapoptotic markers like Bcl-2 associated X-protein (BAX) (p < 0.05), caspase-8 and 3 (p < 0.01 for both) and malondialdehyde (p < 0.01) were higher only in the EOP group as compared to control. However, the antiapoptotic marker, B cell lymphoma 2 (Bcl-2) protein levels were lower in both the subtypes of preeclampsia (p < 0.01 for both). SIGNIFICANCE Our findings suggest that supplementation was beneficial in reducing the caspase-8 and 3 in early onset preeclampsia but did not normalize BAX and Bcl-2 levels. This has implications for reducing placental apoptosis in preeclampsia.
Collapse
Affiliation(s)
- Vaishali Kasture
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Anvita Kale
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Karuna Randhir
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Deepali Sundrani
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India
| | - Sadhana Joshi
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University), Pune-Satara Road, Pune, 411043, India.
| |
Collapse
|
13
|
Niu X, Li CI, Mueller BA. Obstetrical and infant outcomes among women with neoplasms during pregnancy. Cancer Causes Control 2019; 30:651-661. [PMID: 30976958 DOI: 10.1007/s10552-019-01167-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 04/05/2019] [Indexed: 02/03/2023]
Abstract
PURPOSE One in 1,000 pregnancies is complicated by malignancies. Prevalence is greater for benign neoplasms. Adverse outcomes among women with malignancies have been reported. Less is known of postpartum outcomes for infants, or outcomes among women with benign neoplasms. METHODS We conducted a population-based cohort study using Washington State-linked vital-hospital discharge records. Women with neoplasms (707 malignant; 13,156 benign) with deliveries in 1987-2012 were identified, and a randomly selected comparison cohort. Obstetrical/infant outcomes and rehospitalization < 2 years post-delivery were compared separately for each group by multivariable regressions to estimate risk ratios (RR) and 95% confidence intervals (CI). RESULTS Women with either condition had increased anemia, cesarean, and preterm delivery; their infants were more often < 2,500 g or jaundiced. Women with benign conditions had increased gestational diabetes (RR = 1.20; 95% CI 1.12-1.28) and preeclampsia (RR = 1.27; 95% CI 1.18-1.36); their infants had increased malformations (RR = 1.29; 95% CI 1.19-1.38). Women with neoplasms more often were hospitalized seven or more days or rehospitalized; their infants' hospitalizations were also longer. CONCLUSION Malignant and benign neoplasms were associated with several adverse outcomes. Reasons for relationships of benign neoplasms with gestational diabetes, preeclampsia, and congenital malformations merit further study.
Collapse
Affiliation(s)
- Xin Niu
- Department of Epidemiology, University of Washington (UW), Seattle, WA, USA
| | - Christopher I Li
- Department of Epidemiology, University of Washington (UW), Seattle, WA, USA
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center (FHCRC), PO 19024, Mailstop M4-C308, Seattle, WA, 98109-1024, USA
| | - Beth A Mueller
- Department of Epidemiology, University of Washington (UW), Seattle, WA, USA.
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center (FHCRC), PO 19024, Mailstop M4-C308, Seattle, WA, 98109-1024, USA.
| |
Collapse
|
14
|
Effect of Oxidative Stress on the Estrogen-NOS-NO-K Ca Channel Pathway in Uteroplacental Dysfunction: Its Implication in Pregnancy Complications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9194269. [PMID: 30881600 PMCID: PMC6387699 DOI: 10.1155/2019/9194269] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/19/2018] [Accepted: 01/14/2019] [Indexed: 12/27/2022]
Abstract
During pregnancy, the adaptive changes in uterine circulation and the formation of the placenta are essential for the growth of the fetus and the well-being of the mother. The steroid hormone estrogen plays a pivotal role in this adaptive process. An insufficient blood supply to the placenta due to uteroplacental dysfunction has been associated with pregnancy complications including preeclampsia and intrauterine fetal growth restriction (IUGR). Oxidative stress is caused by an imbalance between free radical formation and antioxidant defense. Pregnancy itself presents a mild oxidative stress, which is exaggerated in pregnancy complications. Increasing evidence indicates that oxidative stress plays an important role in the maladaptation of uteroplacental circulation partly by impairing estrogen signaling pathways. This review is aimed at providing both an overview of our current understanding of regulation of the estrogen-NOS-NO-KCa pathway by reactive oxygen species (ROS) in uteroplacental tissues and a link between oxidative stress and uteroplacental dysfunction in pregnancy complications. A better understanding of the mechanisms will facilitate the development of novel and effective therapeutic interventions.
Collapse
|
15
|
Li F, Xie Y, Wu Y, He M, Yang M, Fan Y, Li X, Qiao F, Deng D. HSP20 Exerts a Protective Effect on Preeclampsia by Regulating Function of Trophoblast Cells Via Akt Pathways. Reprod Sci 2018; 26:961-971. [PMID: 30305007 DOI: 10.1177/1933719118802057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Preeclampsia (PE) remains the leading cause of maternal and fetal morbidity and mortality. Excessive apoptosis of the placenta and poor remodeling of spiral arteries caused by insufficient invasion of trophoblast cells into uterus have been implicated in the pathogenesis of PE. Accumulating evidence showed that heat shock protein 20 (HSP20) is closely associated with the proliferation, apoptosis, and metastasis of tumor cells. However, little is known about whether HSP20 plays a role in the development of PE. In this study, we detected the apoptosis index and the expressions of HSP20 and apoptosis-associated proteins in the placentas from PE and normal pregnancies. We found that HSP20 was reversely related to the apoptosis rate and the levels of proapoptotic proteins. Moreover, we identified that HSP20 could suppress the proliferation and apoptosis of trophoblast cells, turning them into a more invasive phenotype. Additionally, H2O2-induced oxidative stress was significantly alleviated, and several key proteins on the Akt signaling pathway were upregulated in HSP20-overexpressing trophoblast cells. These findings strongly suggested that HSP20 might play a role in the remodeling of spiral arteries through affecting the invasiveness of extravillous trophoblast cells via Akt signaling pathway, and the dysregulation of it might contribute to the pathophysiology of PE.
Collapse
Affiliation(s)
- Fanfan Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yin Xie
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuanyuan Wu
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Mengzhou He
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meitao Yang
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yao Fan
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xuanxuan Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fuyuan Qiao
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dongrui Deng
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| |
Collapse
|
16
|
Xiong J, Ding N, Gao T, Wang Y, Guo W, Zhang H, Ma X, Li F, Sun J, Yang X, Wu K, Zhang H, Jiang Y. Hypermethylation of endoplasmic reticulum disulfide oxidase 1α leads to trophoblast cell apoptosis through endoplasmic reticulum stress in preeclampsia. J Cell Biochem 2018; 119:8588-8599. [PMID: 30058081 DOI: 10.1002/jcb.27101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 04/27/2018] [Indexed: 12/16/2022]
Abstract
Abnormal trophoblast cell apoptosis is implicated in the pathogenesis of pregnancy-related disorders including preeclampsia (PE), and endoplasmic reticulum (ER) stress has been considered as a novel pathway in the regulation of cell apoptosis. In this study, we observed that both apoptosis and ER stress are triggered in trophoblast cells under hypoxia as well as in the placenta of PE rats. Quantitative polymerase chain reaction and Western blot analysis showed that the expression of endoplasmic reticulum disulfide oxidase 1α (ERO1α) is suppressed in trophoblast cells under hypoxia due to the hypermethylation of the ERO1α promoter region, and the inhibition of ERO1α expression plays an important role in ER stress and trophoblast cell apoptosis. Furthermore, we found that DNA methyltransferase 1 (DNMT1) is a key methyltransferase for DNA methylation in the regulation of ERO1α expression, and the binding level of DNMT1 to the ERO1α promoter is markedly elevated under hypoxia although DNMT1 expression is inhibited by hypoxia, suggesting that the binding level of DNMT1 to the ERO1α promoter region rather than the DNMT1 expression level contributes to the hypermethylation of ERO1α. Taken together, these results demonstrate that the hypermethylation of ERO1α mediated by increased binding of DNMT1 to the ERO1α promoter leads to trophoblast cell apoptosis through ER stress in the placenta of PE rats, which shed insight into the etiology of PE and might present a validated therapeutic target for the treatment of PE.
Collapse
Affiliation(s)
- Jiantuan Xiong
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Ning Ding
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Tingting Gao
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yanhua Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Wei Guo
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Hui Zhang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xiaoli Ma
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Fan Li
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jianmin Sun
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Xiaoling Yang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Kai Wu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Huiping Zhang
- Department of Prenatal Diagnosis Center, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yideng Jiang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.,Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, Ningxia, China
| |
Collapse
|
17
|
Beta-Estradiol Regulates Voltage-Gated Calcium Channels and Estrogen Receptors in Telocytes from Human Myometrium. Int J Mol Sci 2018; 19:ijms19051413. [PMID: 29747396 PMCID: PMC5983827 DOI: 10.3390/ijms19051413] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/14/2018] [Accepted: 05/02/2018] [Indexed: 12/18/2022] Open
Abstract
Voltage-gated calcium channels and estrogen receptors are essential players in uterine physiology, and their association with different calcium signaling pathways contributes to healthy and pathological conditions of the uterine myometrium. Among the properties of the various cell subtypes present in human uterine myometrium, there is increasing evidence that calcium oscillations in telocytes (TCs) contribute to contractile activity and pregnancy. Our study aimed to evaluate the effects of beta-estradiol on voltage-gated calcium channels and estrogen receptors in TCs from human uterine myometrium and to understand their role in pregnancy. For this purpose, we employed patch-clamp recordings, ratiometric Fura-2-based calcium imaging analysis, and qRT-PCR techniques for the analysis of cultured human myometrial TCs derived from pregnant and non-pregnant uterine samples. In human myometrial TCs from both non-pregnant and pregnant uterus, we evidenced by qRT-PCR the presence of genes encoding for voltage-gated calcium channels (Cav3.1, Ca3.2, Cav3.3, Cav2.1), estrogen receptors (ESR1, ESR2, GPR30), and nuclear receptor coactivator 3 (NCOA3). Pregnancy significantly upregulated Cav3.1 and downregulated Cav3.2, Cav3.3, ESR1, ESR2, and NCOA3, compared to the non-pregnant condition. Beta-estradiol treatment (24 h, 10, 100, 1000 nM) downregulated Cav3.2, Cav3.3, Cav1.2, ESR1, ESR2, GRP30, and NCOA3 in TCs from human pregnant uterine myometrium. We also confirmed the functional expression of voltage-gated calcium channels by patch-clamp recordings and calcium imaging analysis of TCs from pregnant human myometrium by perfusing with BAY K8644, which induced calcium influx through these channels. Additionally, we demonstrated that beta-estradiol (1000 nM) antagonized the effect of BAY K8644 (2.5 or 5 µM) in the same preparations. In conclusion, we evidenced the presence of voltage-gated calcium channels and estrogen receptors in TCs from non-pregnant and pregnant human uterine myometrium and their gene expression regulation by beta-estradiol in pregnant conditions. Further exploration of the calcium signaling in TCs and its modulation by estrogen hormones will contribute to the understanding of labor and pregnancy mechanisms and to the development of effective strategies to reduce the risk of premature birth.
Collapse
|
18
|
Decreased IL-33 Production Contributes to Trophoblast Cell Dysfunction in Pregnancies with Preeclampsia. Mediators Inflamm 2018; 2018:9787239. [PMID: 29736154 PMCID: PMC5875049 DOI: 10.1155/2018/9787239] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/06/2018] [Indexed: 12/14/2022] Open
Abstract
Preeclampsia (PE) is a life-threatening pregnancy complication which is related to aggradation of risk regarding fetal and maternal morbidity and mortality. Dysregulation of systemic inflammatory response and dysfunction of trophoblast cells have been proposed to be involved in the development and progression of PE. Some studies have demonstrated that interleukin-33 (IL-33) is an immunomodulatory cytokine that is associated with the immune regulation of tumor cells. However, little is known whether IL-33 and its receptor ST2/IL-1 R4 could regulate trophoblast cells, which are associated with the pathogenesis of PE. In this study, our target is to explore the impact of IL-33 on trophoblast cells and elucidate its underlying pathophysiological mechanisms. Placental tissues from the severe PE group (n = 11) and the normotensive pregnant women's group (n = 11) were collected for the protein expression and distribution of IL-33 along with its receptor ST2/IL-1 R4 via Western blot analysis and immunohistochemistry, respectively. We discovered that the level of IL-33 was decreased in placental tissues of pregnant women with PE, while no distinction was observed in the expression of ST2/IL-1 R4. These results were further verified in villous explants which were treated with sodium nitroprusside with different concentrations, to simulate the pathological environment of PE. To investigate IL-33 effects on trophoblast cells separately, IL-33 shRNA was introduced into HTR8/SVneo cells and villi. IL-33 shRNA weakened the proliferation, migration, and invasion capacity of HTR8/SVneo cells. The migration distance of villous explants was also markedly decreased. The reduced invasion of trophoblast cells is a result of IL-33 knockdown which could be related to the decline of MMP2/9 activity and the increased utterance of TIMP1/2. Overall, our findings demonstrated that the reduction of IL-33 production was connected with the reduced functional capability of trophoblast cells, thus inducing placental insufficiency that has been linked to the development of PE.
Collapse
|
19
|
Zhou L, Chen H, Mao X, Qi H, Baker PN, Zhang H. G-protein-coupled receptor 30 mediates the effects of estrogen on endothelial cell tube formation in vitro. Int J Mol Med 2017; 39:1461-1467. [PMID: 28440394 PMCID: PMC5428938 DOI: 10.3892/ijmm.2017.2957] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 04/04/2017] [Indexed: 11/05/2022] Open
Abstract
The placenta is the exchange organ between the mother and the fetus. The inadequate function of this organ is associated with a number of pregnancy disorders. Hypoxia and oxidative stress during placental development may induce endothelial dysfunction, resulting in the reduction in the perfusion of the placenta. During pregnancy, the levels of estrogen are increased. Decreased estrogen levels have been reported in women with preeclampsia. However, whether estrogen is involved in placental angiogenesis remains unclear. In this study, we aimed to investigate the effects of estrogen on endothelial cell tube formation and to elucidate the underlying mechanisms. For this purpose, human umbilical vein endothelial cells (HUVECs) were cultured with 17‑β‑estradiol under conditions of hypoxia/reoxygenation (H/R). The total pipe length of the tube‑like structure on endothelial cells was measured. The expression levels of G‑protein‑coupled receptor 30 (GPR30) and endothelial nitric oxide synthase (eNOS) and Akt were also measured in the endothelial cells following treatment with 17‑β‑estradiol under H/R conditions by western blot analysis and immunostaining. We found that the total pipe length of the tube‑like structure on endothelial cells was significantly reduced. This reduction was reversed by treatment with 17‑β‑estradiol. The expression of GPR30 in endothelial cells was significantly increased following treatment with 17‑β‑estradiol under H/R conditions. Furthermore, the levels of eNOS and Akt in endothelial cells were also significantly increased following treatment with 17-β-estradiol under H/R conditions. The activation of eNOS was inhibited by wortmannin, an inhibitor of PI3K/Akt. Our data thus demonstrate that estrogen prevents the failure of endothelial cell tube formation induced by H/R. GPR30 plays an important role in these protective effects through the activation of eNOS and Akt in endothelial cells. Our data suggest that increased levels of estrogen are important for placental angiogenesis.
Collapse
Affiliation(s)
- Liyuan Zhou
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hong Chen
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xun Mao
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hongbo Qi
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Philip N Baker
- Canada‑China‑New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hua Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| |
Collapse
|