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https://www.readbyqxmd.com/read/29127222/mef2-transcription-factors-in-human-placenta-and-involvement-in-cytotrophoblast-invasion-and-differentiation
#1
Lucy Li, Lewis P Rubin, Xiaoming Gong
Development of the human placenta and its trophoblast cell types is critical for successful pregnancy. Defects in trophoblast invasion and differentiation are associated with adverse pregnancy outcomes, including preeclampsia. The members of myocyte enhancer factor-2 (MEF2) family of transcription factors are key regulators of cellular proliferation, differentiation, and invasion in various cell types and tissues and might play a similarly important role in regulating trophoblast proliferation, invasion, and differentiation during human placental development...
November 10, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29108633/preeclampsia-associates-with-reck-dependent-decrease-in-human-trophoblasts-migration-and-invasion
#2
Jaime Gutiérrez, Alejandro Aedo, Jacob Mora, Jorge Maldonado, Rocío Salsoso, Fernando Toledo, Marcelo Farías, Fabián Pardo, Andrea Leiva, Luis Sobrevia
INTRODUCTION: Preeclampsia is characterized by reduced invasion capacity of trophoblasts involving lower matrix metalloproteinase (MMP) activity. Cell invasion is reduced by reversion-inducing-cysteine-rich protein with Kazal motifs (RECK), a plasma membrane protein that inhibits MMP in several cell types. However, it is unknown whether this mechanism happens in the human placenta from preeclampsia. The hypothesis of this study sustains that RECK expression is increased leading to reduced trophoblasts invasion in preeclampsia...
November 2017: Placenta
https://www.readbyqxmd.com/read/29067442/wnt-%C3%AE-catenin-signaling-pathway-in-trophoblasts-and-abnormal-activation-in-preeclampsia-review
#3
Zhan Zhang, Xiaofang Wang, Linlin Zhang, Ying Shi, Jinming Wang, Huan Yan
Preeclampsia (PE) is one of the most common types of hypertensive disease and occurs in 3‑4% of pregnancies. There are a number of theories on the pathogenesis of PE. Abnormal differentiation of the placenta may lead to failure of trophoblast migration, shallow placenta implantation and placental ischemia/hypoxia, followed by the subsequent occurrence of PE. The Wnt/β-catenin pathway is a canonical Wnt‑signaling pathway that regulates several biological processes, including proliferation, migration, invasion and apoptosis...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28974256/exosomes-of-human-placenta-derived-mesenchymal-stem-cells-stimulate-angiogenesis
#4
Motohiro Komaki, Yuri Numata, Chikako Morioka, Izumi Honda, Masayuki Tooi, Naoki Yokoyama, Hirohito Ayame, Kengo Iwasaki, Atsuko Taki, Noriko Oshima, Ikuo Morita
BACKGROUND: The therapeutic potential of mesenchymal stem cells (MSCs) may be attributed partly to humoral factors such as growth factors, cytokines, and chemokines. Human term placental tissue-derived MSCs (PlaMSCs), or conditioned medium left over from cultures of these cells, have been reported to enhance angiogenesis. Recently, the exosome, which can transport a diverse suite of macromolecules, has gained attention as a novel intercellular communication tool. However, the potential role of the exosome in PlaMSC therapeutic action is not well understood...
October 3, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28964848/nerve-glial-antigen-ng-2-is-a-crucial-regulator-of-intercellular-adhesion-molecule-icam-1-expression
#5
Beate M Schmitt, Matthias W Laschke, Oliver G Rössler, Wenhui Huang, Anja Scheller, Michael D Menger, Emmanuel Ampofo
The proteoglycan nerve/glial antigen (NG) 2 is expressed on multiple cell types and mediates cell proliferation and migration. However, little is known about its function in gene regulation. In this study, we demonstrate that in pericytes and glioblastoma cells intercellular adhesion molecule (ICAM)-1, an essential protein for leukocyte adhesion and transmigration, underlies a NG2-dependent expression. As shown by flow cytometry, Western blot analysis and quantitative real-time polymerase chain reaction (qRT-PCR), silencing of NG2 in human placenta-derived pericytes increased the expression of ICAM-1...
September 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28962595/maspin-impairs-the-function-of-endothelial-cells-an-implying-pathway-of-preeclampsia
#6
Ying Zhang, Hao Liu, Xinwei Shi, Fuyuan Qiao, Wanjiang Zeng, Ling Feng, Dongrui Deng, Haiyi Liu, Yuanyuan Wu
BACKGROUD: Widespread endothelial injury contributes to the occurrence of preeclampsia. Maspin, first identified as a tumor suppressor, plays a critical role in cell invasion and angiogenesis. Our previous studies found that the expression of maspin was increased in preeclampsic placenta. In this research, we studied the function of human umbilical vein endothelial cells (HUVECs) to explore the role and possible mechanism of maspin gene in the pathogenesis of preeclampsia. METHODS: HUVECs were treated with different concentration of recombinant human maspin protein (r-maspin) during normoxia and hypoxia, we detected the proliferation, apoptosis, migration and tube formation of HUVECs...
September 29, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28901463/microrna-expression-profiles-and-networks-in-placentas-complicated-with-selective-intrauterine-growth-restriction
#7
Hong Wen, Lu Chen, Jing He, Jun Lin
The microRNA (miRNA) profiles of placentas complicated with selective intrauterine growth restriction (sIUGR) are unknown. In the present study, the sIUGR‑associated placental miRNA expression was investigated using microarray and confirmatory reverse transcriptase‑quantitative polymerase chain reaction studies. Placenta samples around the individual insertion region for each umbilical cord were collected from monochorionic twins complicated with (n=17) or without sIUGR (control, n=16). miRNA profile analysis was performed on two sIUGR cases and one control using an Affymetrix microRNA 4...
November 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28899975/antagonism-of-eg-vegf-receptors-as-targeted-therapy-for-choriocarcinoma-progression-in-vitro-and-in-vivo
#8
Wael Traboulsi, Frédéric Sergent, Houssine Boufettal, Sophie Brouillet, Rima Slim, Pascale Hoffmann, Mohammed Benlahfid, Qun Y Zhou, Gianfranco Balboni, Valentina Onnis, Pierre A Bolze, Aude Salomon, Philippe Sauthier, François Mallet, Touria Aboussaouira, Jean J Feige, Mohamed Benharouga, Nadia Alfaidy
Purpose: Choriocarcinoma (CC) is the most malignant gestational trophoblastic disease that often develops from complete hydatidiform moles (CHM). Neither the mechanism of CC development nor its progression is yet characterized. We recently identified endocrine gland-derived vascular endothelial growth factor (EG-VEGF) as a novel key placental growth factor that controls trophoblast proliferation and invasion. EG-VEGF acts via two receptors, PROKR1 and PROKR2. Here, we demonstrate that EG-VEGF receptors can be targeted for CC therapy...
September 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28881663/bisphenol-a-exposure-promotes-htr-8-svneo-cell-migration-and-impairs-mouse-placentation-involving-upregulation-of-integrin-%C3%AE-1-and-mmp-9-and-stimulation-of-mapk-and-pi3k-signaling-pathways
#9
Xi Lan, Li-Juan Fu, Jun Zhang, Xue-Qing Liu, Hui-Jie Zhang, Xue Zhang, Ming-Fu Ma, Xue-Mei Chen, Jun-Lin He, Lian-Bing Li, Ying-Xiong Wang, Yu-Bin Ding
In this study, we investigated the effect of Bisphenol A (BPA), an endocrine-disrupting chemical, on the migration of human trophoblasts and mouse placentation by using the primary extravillous trophoblast (EVT) and its cell line HTR-8/SVneo, villous explant cultures, and pregnant mice. BPA increased EVT motility and the outgrowth of villous explants in a dose-dependent manner. BPA also increased the protein levels of integrin-β1 and matrix metalloproteinase (MMP)-9 in human EVTs. Low-dose BPA (≤50 mg) increased the protein levels of MMP-9 and MMP-2 as well as integrin-β1 and integrin-α5 in mouse placenta and decreased the proportion of the labyrinth and spongiotrophoblast layers...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28870404/interferon-%C3%AE-suppresses-the-proliferation-and-migration-of-human-placenta-derived-mesenchmal-stromal-cells-and-enhances-their-ability-to-induce-the-generation-of-cd4-cxcr5-foxp3-treg-subset
#10
Jun-Zhu Yi, Zheng-Hua Chen, Feng-Huang Xu, Zhuo-Ya Wang, Hong-Qin Zhang, Guo-Sheng Jiang, Xi-Ying Luan
We investigate the effects of interferon (IFN)-γ on human placenta-derived mesenchymal stromal cells (hPMSCs), in particular, their adhesion, proliferation and migration and modulatory effects on the CD4(+)CXCR5(+)Foxp3(+)Treg subset. And we compared hPMSCs ability to induce the generation of different Treg subsets in response to treatment with IFN-γ. We found that IFN-γ suppressed the proliferation and migration for hPMSCs. The ability of hPMSCs to induce the generation of CD4(+)CXCR5(+)Foxp3(+)Treg subset was enhanced by IFN-γ...
July 25, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28869810/autophagy-regulation-in-preeclampsia-pros-and-cons
#11
REVIEW
Akitoshi Nakashima, Aiko Aoki, Tae Kusabiraki, Shi-Bin Cheng, Surendra Sharma, Shigeru Saito
Autophagy is an evolutionarily conserved process in eukaryotes to maintain cellular homeostasis against stress. This process has two main functions: producing energy and quality control of intracellular proteins. During early pregnancy, extravillous trophoblasts (EVTs) invade the uterine myometrium and migrate along the lumina of spiral arterioles under hypoxic and low-nutrient conditions. Autophagy activation is observed in EVTs under these conditions, suggesting that EVTs use autophagy for adjusting to such harsh conditions...
September 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28826365/src-3-plays-a-critical-role-in-human-umbilical-vein-endothelial-cells-by-regulating-the-pi3k-akt-mtor-pathway-in-preeclampsia
#12
Yu Yuan, Nan Shan, Bin Tan, Qinyin Deng, Yangming Liu, Hanbin Wang, Xiaofang Luo, Chengjin He, Xin Luo, Hua Zhang, Philip N Baker, David M Olson, Hongbo Qi
Preeclampsia (PE) is currently thought to be characterized by oxidative stress which may lead to endothelial dysfunction. The normal function of vascular endothelium is essential to vascular homeostasis. Previous studies have shown that steroid receptor coactivator 3 (SRC-3) interacts with estrogen receptors (ERs) which are involved in the vasoprotective effects of estrogen and is also associated with cell migration, invasion, and inflammation; however, its role in PE remains unclear. The main purpose of this study is to identify the role of SRC-3 in the function of human umbilical vein endothelial cells (HUVECs) during the development of PE...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28826364/mir-203-participates-in-human-placental-angiogenesis-by-inhibiting-vegfa-and-vegfr2-expression
#13
Fulin Liu, Wanrong Wu, Kejia Wu, Yurou Chen, Hanshu Wu, Hui Wang, Wei Zhang
Angiogenesis during placentation is of great significance in maintaining normal pregnancy. However, the molecular mechanisms of this process are not clear. It has been reported that miR-203 plays a critical role in the development and progression of many tumors but not focused on the relationship between miR-203 and placental angiogenesis. The present study aims to illustrate the correlation between miR-203 and vascular endothelial growth factor (VEGFA)/vascular endothelial growth factor receptors 2 (VEGFR2) in human placenta and human umbilical vein endothelial cells (HUVECs) obtained from 40 samples...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28817576/gestational-diabetes-mellitus-is-associated-with-increased-pro-migratory-activation-of-vascular-endothelial-growth-factor-receptor-2-and-reduced-expression-of-vascular-endothelial-growth-factor-receptor-1
#14
Felipe Troncoso, Jesenia Acurio, Kurt Herlitz, Claudio Aguayo, Patricio Bertoglia, Enrique Guzman-Gutierrez, Marco Loyola, Marcelo Gonzalez, Meriem Rezgaoui, Gernot Desoye, Carlos Escudero
Placentas from gestational diabetes mellitus (GDM) are often hypervascularized; however, participation of vascular endothelial growth factor (VEGF) and its receptors in this placental adaptation is unclear. We aimed to test whether changes in phosphorylation of tyrosine 951 or tyrosine 1175 (pY951 or pY1175) of the vascular endothelial growth factor receptor 2 (KDR) are associated with the proangiogenic state observed in placentas from GDM. We obtained placental samples from women with normal pregnancies (n = 24) or GDM (n = 18)...
2017: PloS One
https://www.readbyqxmd.com/read/28808304/hypoxia-induced-tet1-facilitates-trophoblast-cell-migration-and-invasion-through-hif1%C3%AE-signaling-pathway
#15
Jingping Zhu, Kai Wang, Ting Li, Jiayu Chen, Dandan Xie, Xinwen Chang, Julei Yao, Jinting Wu, Qian Zhou, Yuanhui Jia, Tao Duan
Low oxygen is a typical extrinsic factor for the regulation of trophoblast biological function, including cell migration, invasion and proliferation. Ten-eleven translocation methylcytosine dioxygenase 1 (TET1), an enzyme converting 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC), is transcriptionally activated by hypoxia in cancer cells. Therefore, we focus on the role of TET1 on trophoblast function in a physiologically hypoxic environment (3% oxygen), which is related to early placentation. Here, we found that TET1 was highly expressed in first trimester villi compared with normal term placentas...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800671/-outcomes-of-planned-out-of-hospital-and-low-risk-hospital-births-in-lower-saxony
#16
Antje Petersen, Lea-Marie Köhler, Christiane Schwarz, Bernhard Vaske, Mechthild M Gross
Introduction Internationally, there is debate on the safety of different birth settings inside and outside of hospitals. Low-risk women in Germany can choose where they give birth, and out-of-hospital births are especially necessary in regions lacking infrastructure. To date, national studies are required. Materials and Methods We investigated planned out-of-hospital (OH) and hospital births in Lower Saxony, Germany, in 2005. Women with a singleton fetus in the vertex position were included once they reached 34+0 gestational weeks...
August 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28782224/prokineticin-1-is-up-regulated-by-insulin-in-decidualizing-human-endometrial-stromal-cells
#17
Dorina Ujvari, Ivika Jakson, Cecilia Oldmark, Sanaz Attarha, Twana Alkasalias, Daniel Salamon, Sebastian Gidlöf, Angelica Lindén Hirschberg
Prokineticin 1 (PROK1), a hypoxia-regulated angiogenic factor, has emerged as a crucial regulator of embryo implantation and placentation. Dysregulation of PROK1 has been linked to recurrent pregnancy loss, pre-eclampsia, foetal growth restriction and preterm birth. These pregnancy complications are common in women with obesity and polycystic ovary syndrome, i.e. conditions associated with insulin resistance and compensatory hyperinsulinaemia. We investigated the effect of insulin on PROK1 expression during in vitro decidualization...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28772212/mir-144-may-regulate-the-proliferation-migration-and-invasion-of-trophoblastic-cells-through-targeting-pten-in-preeclampsia
#18
Jianping Xiao, Tao Tao, Yongxiang Yin, Li Zhao, Lan Yang, Lingqing Hu
Previous studies indicated that microRNAs (miRNAs) were aberrantly expressed in the placentas of patients with Preeclampsia (PE); however, the underlying mechanism still requires further investigation. The aim of this study is to investigate the roles of miR-144 in preeclampsia and the related mechanism. The expression of miR-144 and PTEN in 30 placentas of patients with PE and 30 normal placentas was compared; next, HTR8/SVneo cells were transfected with miR-144 mimics and miR-144 inhibitors and cultured for 48h, and the proliferation and apoptosis, cell migration and invasion of the cells were examined; furthermore, the expression PTEN, Caspase-3 and Bcl-2 was examined; next, dual luciferase reporter assay has been performed to confirm that PTEN is a direct target of miR-144; finally, HTR-8/SVneo cells were transfected with either PTEN overexpression plasmid or PTEN RNAi to determine whether knockdown or overexpression of PTEN can mimic the effect of miR-144 We have observed that the expression of miR-144 was significantly decreased and the expression of PTEN was markedly increased in placentas of patients with PE compared with normal placentas; moreover, transfection of miR-144 mimics in trophoblastic cells induced significant increase in cell proliferation, migration, invasion, and decrease in cell apoptosis, and also affected the cell cycles; on the other hand, transfection of miR-144 inhibitors has shown the opposite effects; furthermore, transient overexpression of miR-144 induced marked decrease in the expression of PTEN, Caspase-3 and increase in expression of Bcl-2 (P<0...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28765940/il%C3%A2-33-restricts-invasion-and-adhesion-of-trophoblast-cell-line-jeg3-by-downregulation-of-integrin-%C3%AE-4%C3%AE-1-and-cd62l
#19
Xiao-Hui Wang, Wei Liu, Deng-Xuan Fan, Wen-Ting Hu, Ming-Qing Li, Xiao-Yong Zhu, Li-Ping Jin
Interleukin-33 (IL-33) promotes migration of cancer cells through downregulating the expression of E-cadherin. Previous studies have demonstrated that IL‑33 stimulates the proliferation of trophoblasts. However, the effect of IL‑33 on the adhesion and invasion of trophoblasts has not been investigated in detail. In the present study, the expression of IL‑33 and its receptor, IL‑1 receptor‑like 1 (ST2), was examined in villi from women during early pregnancy using immunohistochemistry. ST2 expression on human trophoblast and choriocarcinoma cell lines JAR, BeWo, JEG3 and HTR8 was confirmed by flow cytometry (FCM) assay...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28758930/treatment-of-human-placental-choriocarcinoma-cells-with-formaldehyde-and-benzene-induced-growth-and-epithelial-mesenchymal-transition-via-induction-of-an-antioxidant-effect
#20
Hae-Miru Lee, Soo-Min Kim, Kyung-Chul Choi
Cigarette smoke (CS) causes about 480,000 deaths each year worldwide, and it is well-known to have harmful effects on the human body, leading to heart disease, stroke, lung cancer, and cardiovascular problems. In this study, the effects of formaldehyde (FA) and benzene (Bz), the main components of CS, on cell proliferation and epithelial mesenchymal transition (EMT) of JEG-3 human choriocarcinoma cells were examined to confirm the relationship between CS components and placenta carcinoma. Upon MTT assay, FA (10(-8) M to 10(-5) M) and Bz (10(-11) M to 10(-8) M) increased JEG-3 cell proliferation...
July 29, 2017: International Journal of Environmental Research and Public Health
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