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Hu H, Ma J, Peng Y, Feng R, Luo C, Zhang M, Tao Z, Chen L, Zhang T, Chen W, Yin Q, Zhai J, Chen J, Yin A, Wang CC, Zhong M. Thrombospondin-1 Regulates Trophoblast Necroptosis via NEDD4-Mediated Ubiquitination of TAK1 in Preeclampsia. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309002. [PMID: 38569496 PMCID: PMC11151050 DOI: 10.1002/advs.202309002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/05/2024] [Indexed: 04/05/2024]
Abstract
Preeclampsia (PE) is considered as a disease of placental origin. However, the specific mechanism of placental abnormalities remains elusive. This study identified thrombospondin-1 (THBS1) is downregulated in preeclamptic placentae and negatively correlated with blood pressure. Functional studies show that THBS1 knockdown inhibits proliferation, migration, and invasion and increases the cycle arrest and apoptosis rate of HTR8/SVneo cells. Importantly, THBS1 silencing induces necroptosis in HTR8/SVneo cells, accompanied by the release of damage-associated molecular patterns (DAMPs). Necroptosis inhibitors necrostatin-1 and GSK'872 restore the trophoblast survival while pan-caspase inhibitor Z-VAD-FMK has no effect. Mechanistically, the results show that THBS1 interacts with transforming growth factor B-activated kinase 1 (TAK1), which is a central modulator of necroptosis quiescence and affects its stability. Moreover, THBS1 silencing up-regulates the expression of neuronal precursor cell-expressed developmentally down-regulated 4 (NEDD4), which acts as an E3 ligase of TAK1 and catalyzes K48-linked ubiquitination of TAK1 in HTR8/SVneo cells. Besides, THBS1 attenuates PE phenotypes and improves the placental necroptosis in vivo. Taken together, the down-regulation of THBS1 destabilizes TAK1 by activating NEDD4-mediated, K48-linked TAK1 ubiquitination and promotes necroptosis and DAMPs release in trophoblast cells, thus participating in the pathogenesis of PE.
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Affiliation(s)
- Haoyue Hu
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jing Ma
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - You Peng
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Rixuan Feng
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Chenling Luo
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Minyi Zhang
- Department of EpidemiologySchool of Public HealthSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Zixin Tao
- Department of Obstetrics and GynecologyGuangzhou First People's HospitalSchool of MedicineSouth China University of TechnologyGuangzhouGuangdong510180China
| | - Lu Chen
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Tao Zhang
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Wenqian Chen
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Qian Yin
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jinguo Zhai
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jun Chen
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Ailan Yin
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Mei Zhong
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
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Hu H, Ma J, Li Z, Ding Z, Chen W, Peng Y, Tao Z, Chen L, Luo M, Wang C, Wang X, Li J, Zhong M. CyPA interacts with SERPINH1 to promote extracellular matrix production and inhibit epithelial-mesenchymal transition of trophoblast via enhancing TGF-β/Smad3 pathway in preeclampsia. Mol Cell Endocrinol 2022; 548:111614. [PMID: 35304192 DOI: 10.1016/j.mce.2022.111614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/15/2022] [Accepted: 03/04/2022] [Indexed: 10/18/2022]
Abstract
We previously reported that cyclophilin A (CyPA) production is upregulated in preeclampsia (PE). Moreover, CyPA is known to induce PE-like features in pregnant mice and impair trophoblast invasiveness. In this study, we further illustrated the role of CyPA in PE. RNA-seq analysis, RT-qPCR, immunohistochemical (IHC) staining, and western blotting of mouse placentae revealed that CyPA increased the levels of extracellular matrix (ECM) proteins, such as collagen I and fibronectin, and activated the TGF-β/Smad3 signaling pathway. Additionally, CyPA inhibited the expression of genes involved in epithelial-mesenchymal transition (EMT) (e.g., E-cadherin, N-cadherin, and vimentin) in mouse placentae. We then constructed stable overexpressing and knock-down CyPA cell models (using HTR8/SVneo cells) to clarify the molecular mechanism. We found that CyPA regulated the levels of ECM-related proteins and the EMT process through the TGF-β/Smad3 pathway. We also identified SERPINH1 as a putative CyPA-binding protein, using liquid chromatography-electrospray mass spectrometry (LC-MS)/MS. SERPINH1 was found to be upregulated in the placentae of PE. Silencing SERPINH1 expression reversed the upregulation of ECM proteins and inhibition of the EMT process induced by the overexpression of CyPA. These findings revealed the functions of CyPA in the impaired invasiveness of trophoblasts in PE and indicated that CyPA and SERPINH1 may represent promising targets for the treatment of PE.
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Affiliation(s)
- Haoyue Hu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Ma
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiju Li
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Ziling Ding
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenqian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - You Peng
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zixin Tao
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lu Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Manling Luo
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chichiu Wang
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Xuefei Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Jing Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Placental Cyclophilin A Expression in Pregnancies Complicated with Hypertension. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095448. [PMID: 35564847 PMCID: PMC9101619 DOI: 10.3390/ijerph19095448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/13/2022] [Accepted: 04/27/2022] [Indexed: 01/20/2023]
Abstract
Introduction: Cyclophilin A was reported to be increased in the serum of mothers with preeclampsia, and is implicated in its pathogenesis. This study aimed to determine the expression of cyclophilin A in the placenta of mothers with and without hypertension, and to correlate its expression with maternal complications and adverse perinatal outcomes. Materials and Methods: This study consisted of a total of 70 cases (35 cases of mothers with hypertension, and 35 normotensive mothers as a control). Cyclophilin A immunohistochemistry was performed on a paraffin-embedded tissue section of placenta submitted at full thickness in order to evaluate the expression in fetal endothelial cells, cytotrophoblasts, syncytiotrophoblasts, maternal endothelial cells and decidual cells. The cyclophilin A expression was scored as weak, moderate or strong intensity. Results: The hypertensive group was more likely to have preterm deliveries (p < 0.0001), caesarean sections (p < 0.0001), and infants admitted to the intensive care unit (p < 0.001). Fifty-one percent of the fetal endothelial cells and cytotrophoblasts expressed cyclophilin A in the hypertensive group, compared to only 28.6% in the normotensive group. However, the difference was not statistically significant (p = 0.086). Conclusion: We found no significant difference in placental cyclophilin A expression between hypertensive and normotensive mothers. There was also no difference in expression in mothers with and without maternal complications and adverse perinatal outcomes.
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Liu M, Wang RB, Xing JH, Tang YX. Atractylenolide inhibits apoptosis and oxidative stress of HTR-8/SVneo cells by activating MAPK/ERK signalling in preeclampsia. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 93:153773. [PMID: 34649213 DOI: 10.1016/j.phymed.2021.153773] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 05/28/2023]
Abstract
BACKGROUND Preeclampsia (PE) is a severe hypertension-related disorder occurring during pregnancy that leads to significant mortality and morbidity in both the foetus and mother. Atractylenolide (ATL), a traditional Chinese natural agent isolated from the herb Atractylodes macrocephala, exhibits a series of pharmacological activities, including anti-oxidative stress and anti-inflammatory effects. PURPOSE The impacts of ATL on apoptosis and oxidative stress in HTR-8/SVneo cells during PE development was investigated. STUDY DESIGN We identified ATL by an overlap analysis of the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) database using the keyword 'gestational hypertension' and Traditional Chinese Medicine (Batman-TCM) database using the keyword 'Atractylodes macrocephala'. METHODS Cell viability, proliferation, and migration were detected by CCK-8, EdU, and transwell assays. Flow cytometry and 2',7'-dichlorodihydrofluorescein diacetate were used to assess apoptosis and reactive oxygen species (ROS) levels. RESULTS EdU and CCK-8 assays demonstrated that ATL significantly enhanced the viability of HTR-8/SVneo cells. Transwell assays showed that ATL remarkably induced the migration of HTR-8/SVneo cells. Moreover, ROS production in HTR-8/SVneo cells was induced by H2O2, whilst ATL alleviated this H2O2-induced ROS production and apoptosis in cells. CONCLUSION ATL attenuated apoptosis and oxidative stress in HTR-8/SVneo cells in PE by activating the MAPK/ERK signalling pathway. ATL has potential to be utilized as a potential therapeutic candidate for PE.
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Affiliation(s)
- Mei Liu
- Chinese Medicine College, Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250355, China; Department of Obstetrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250011, China
| | - Rui-Bo Wang
- Chinese Medicine College, Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250355, China
| | - Jian-Hong Xing
- Department of Obstetrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250011, China
| | - Ying-Xue Tang
- Chinese Medicine College, Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250355, China.
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Ma Y, Wu H, Liang X, Zhang C, Ma Y, Wei Y, Li J, Chen H. Identification of downstream targets and signaling pathways of long non-coding RNA NR_002794 in human trophoblast cells. Bioengineered 2021; 12:6617-6628. [PMID: 34516352 PMCID: PMC8806843 DOI: 10.1080/21655979.2021.1974808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Preeclampsia (PE) is a huge threat to pregnant women. Our previous study demonstrated that long non-coding RNA (lncRNA) NR_002794 was highly expressed in placentas of PE patients and could regulate the phenotypes of trophoblast cells. However, the downstream regulatory mechanisms of NR_002794 remain unknown. In this text, some potential downstream targets or signaling pathways of NR_002794 were identified through RNA sequencing (RNA-seq) and bioinformatics analysis in SWAN71 trophoblast cells. Western blot assay demonstrated that NR_002794 inactivated protein kinase B (AKT) and extracellular signal-regulated kinase 1/2 (ERK1/2) pathways and activated cell apoptotic signaling in SWAN71 cells. Both RNA-seq and reverse transcription-quantitative PCR (RT-qPCR) outcomes showed that NR_002794 up-regulation could notably inhibit the expression of C-C motif chemokine ligand 4 like 2 (CCL4L2), interleukin 15 receptor subunit alpha (IL15RA), interleukin 32 (IL32), and tyrosine kinase with immunoglobulin-like and EGF-like domains 1 (TIE1), while NR_002794 knockdown induced these gene expressions in SWAN71 cells. CCK-8, BrdU, Transwell, wound healing, and flow cytometry analyses showed that NR_002794 inhibited cell proliferation and migration and induced cell apoptosis through down-regulating TIE1 in SWAN71 cells. In conclusion, lncRNA NR_002794 could exert its functions by regulating AKT and ERK1/2 pathways and TIE1 expression in human trophoblast cells.
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Affiliation(s)
- Yinyao Ma
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Hua Wu
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Xuxia Liang
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Chun Zhang
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Yanhua Ma
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Yanfen Wei
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Jing Li
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
| | - Hui Chen
- Department of Obstetrics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, P.R. China
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Peng P, Song H, Xie C, Zheng W, Ma H, Xin D, Zhan J, Yuan X, Chen A, Tao J, Qin J. miR-146a-5p-mediated suppression on trophoblast cell progression and epithelial-mesenchymal transition in preeclampsia. Biol Res 2021; 54:30. [PMID: 34517910 PMCID: PMC8438983 DOI: 10.1186/s40659-021-00351-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 08/24/2021] [Indexed: 12/29/2022] Open
Abstract
Objective This study aims to identify the effect of miR-146a-5p on trophoblast cell invasion as well as the mechanism in preeclampsia (PE). Methods Expression levels of miR-146a-5p and Wnt2 in preeclamptic and normal placentae were quantified. Trophoblast cells (HTR-8) were separately transfected with miR-146a-5p mimic, miR-146a-5p inhibitor, pcDNA3.1-Wnt2 or sh-Wnt2, and then the expression levels of miR-146a-5p, Wnt2, and epithelial-mesenchymal transition (EMT)-related proteins (Vimentin, N-cadherin and E-cadherin) were measured. Moreover, the proliferative, migratory and invasive capacities of trophoblast cells were detected, respectively. Dual luciferase reporter assay determined the binding of miR-146a-5p and Wnt2. Results Compared with normal placental tissues, the placentae from PE patients showed higher miR-146a-5p expression and lower Wnt2 expression. Transfection of miR-146a-5p inhibitor or pcDNA3.1-Wnt2 exerted pro-migratory and pro-invasive effects on HTR-8 cells and encouraged EMT in HTR-8 cells; transfection with miR-146a-5p mimic or sh-Wnt2 weakened the proliferative, migratory and invasive capacities as well as reduced EMT process of HTR-8 cells. Moreover, Wnt2 overexpression could partially counteract the suppressive effects of miR-146a-5p overexpression on the progression and EMT of HTR-8 cells. Conclusion miR-146a-5p mediates trophoblast cell proliferation and invasion through regulating Wnt2 expression.
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Affiliation(s)
- Pingping Peng
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Huamei Song
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Chenghong Xie
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Wenfei Zheng
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Huigai Ma
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Dandan Xin
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Jingqiong Zhan
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Xiaoqing Yuan
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Aihua Chen
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Jing Tao
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China.,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China
| | - Jufang Qin
- Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, Yichang, 443000, Hubei, People's Republic of China. .,Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University, Yichang, 443000, Hubei, People's Republic of China. .,Department of Gynecology and Obstetrics, the First People's Hospital of Yichang, the People's Hospital of China Three Gorges University, No. 4, Hudi Street, Xiling District, Yichang, 443000, Hubei, People's Republic of China.
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Ma J, Hu H, Lin M, Chen L, Liu M, Li H, Quan S. ELABELA alleviates syncytiotrophoblast hypoxia/reoxygenation injury and preeclampsia-like symptoms in mice by reducing apoptosis. Placenta 2021; 106:30-39. [PMID: 33610935 DOI: 10.1016/j.placenta.2021.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/22/2021] [Accepted: 02/01/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Preeclampsia (PE) is associated with increased syncytiotrophoblast apoptosis. ELABELA (ELA) is a circulating hormone secreted by the placenta. Here, we investigated the involvement of ELA in the pathogenesis of PE. METHODS We measured ELA expression in the placental villi of patients with severe PE and healthy controls. A cellular model of hypoxia and reoxygenation was used to simulate PE hypoxia, and changes in the proliferation and apoptosis of trophoblasts in response to different ELA concentrations were measured. In addition, we used NG-nitro-l-arginine methyl ester (l-NAME) to generate a mouse model of pregnancy-induced hypertension and explore whether ELA can improve the symptoms of PE. RESULTS ELA expression was decreased in severe PE. ELA promoted the proliferation of BeWo cells and improved the decreased cell proliferation rate after hypoxia/reoxygenation injury. ELA reversed the phenotypes of l-NAME-induced PE mice and regulated the expression of mouse placental apoptosis factors. DISCUSSION ELA reduced apoptosis in BeWo cells and improved PE-like symptoms in mice, suggesting its value as a potential novel treatment for PE.
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Affiliation(s)
- Jing Ma
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haoyue Hu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Miaoling Lin
- Department of Obstetrics and Gynaecology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Lu Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mian Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Song Quan
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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