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https://www.readbyqxmd.com/read/29339719/mir-181a-5p-suppresses-invasion-and-migration-of-htr-8-svneo-cells-by-directly-targeting-igf2bp2
#1
Liang Wu, Wen-Yan Song, Ya Xie, Lin-Li Hu, Xiao-Man Hou, Rui Wang, Yang Gao, Jing-Na Zhang, Le Zhang, Wei-Wei Li, Cheng Zhu, Zhi-Ying Gao, Ying-Pu Sun
Pre-eclampsia is a pregnancy-related disease that may cause maternal, neonatal and fetal morbidity and mortality and exists in 3-5% of pregnancies worldwide. The discovery of dysregulated microRNAs and their roles in placental development has provided a new avenue for elucidating the mechanism involved in this pregnancy-specific disorder. Here, the roles of human miR-181a-5p, a microRNA that is increased in both the plasma and placenta of severe pre-eclamptic patients, in invasion and migration of trophoblasts were investigated...
January 16, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29339463/cell-cycle-arrest-and-apoptosis-induced-by-porphyromonas-gingivalis-requires-jnk-and-p53-mediated-p38-activation-in-human-trophoblasts
#2
Hiroaki Inaba, Atsuo Amano, Richard J Lamont, Yukitaka Murakami, Michiyo Matsumoto-Nakano
Porphyromonas gingivalis, a periodontal pathogen, has been implicated as a causative agent of preterm delivery of low-birth-weight infants. We previously reported that P. gingivalis activated cellular DNA damage signaling pathways and ERK1/2 that lead to G1 arrest and apoptosis in extravillous trophoblast cells (HTR-8 cells) derived from the human placenta. In the present study, we further examined alternative signaling pathways mediating cellular damage caused by P. gingivalis. P. gingivalis infection of HTR-8 cells induced phosphorylation of p38 and JNK, while their inhibitors diminished both G1 arrest and apoptosis...
January 16, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29334801/bu-shen-yi-qi-formula-impairs-cytotoxicity-of-nk-cells-by-up-regulating-ido-expression-in-trophoblasts
#3
Shao-Liang Yang, Tian-Tian Niu, Xue-Lian Li, Da-Jin Li, Ming-Qing Li, Hai-Yan Wang
Recurrent spontaneous abortion (RSA) is a common health problem that affects about 5% of fertile women, when it occurs for unknown reasons, it is called unexplained recurrent spontaneous abortion (URSA). Traditional Chinese medicine, such as Bu-Shen-Yi-Qi formula which consists of Dangshen, Tusizi, Baizhu, Baishuo, Duzhong, Sangjisheng, Sugeng, and Tiaohuangqin, has played an invaluable role in the treatment of RSA since ancient times. However, the mechanism of how it takes effect is still not clear. To identify Bu-Shen-Yi-Qi formula could modulate immune condition at maternal-fetal interface via its effect on trophoblasts, HTR-8 of different treatment were co-cultured with peripheral or decidual natural killer (NK) cells, and the receptors such as NKP30 and NKP46 expression on NK cells were measured by flow cytometry (FCM)...
January 15, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29334310/dendritic-polyglycerol-nanoparticles-show-charge-dependent-bio-distribution-in-early-human-placental-explants-and-reduce-hcg-secretion
#4
Herbert Juch, Liudmila Nikitina, Sabine Reimann, Martin Gauster, Gottfried Dohr, Barbara Obermayer-Pietsch, Denise Hoch, Karin Kornmueller, Rainer Haag
A thorough understanding of nanoparticle bio-distribution at the feto-maternal interface will be a prerequisite for their diagnostic or therapeutic application in women of childbearing age and for teratologic risk assessment. Therefore, the tissue interaction of biocompatible dendritic polyglycerol nanoparticles (dPG-NPs) with first- trimester human placental explants were analyzed and compared to less sophisticated trophoblast-cell based models. First-trimester human placental explants, BeWo cells and primary trophoblast cells from human term placenta were exposed to fluorescence labeled, ∼5 nm dPG-NPs, with differently charged surfaces, at concentrations of 1 µM and 10 nM, for 6 and 24 h...
January 15, 2018: Nanotoxicology
https://www.readbyqxmd.com/read/29331320/zika-dengue-and-yellow-fever-viruses-induce-differential-anti-viral-immune-responses-in-human-monocytic-and-first-trimester-trophoblast-cells
#5
Huanle Luo, Evandro R Winkelmann, Ildefonso Fernandez-Salas, Li Li, Sandra V Mayer, Rogelio Daniz-Lozano, Rosa Ma Sanchez-Casas, Nikos Vasilakis, Robert Tesh, Alan D Barrett, Scott C Weaver, Tian Wang
Zika virus (ZIKV) is a mosquito-borne flavivirus associated with severe neonatal birth defects, but the causative mechanism is incompletely understood. ZIKV shares sequence homology and early clinical manifestations with yellow fever virus (YFV) and dengue virus (DENV) and are all transmitted in urban cycles by the same species of mosquitoes. However, YFV and DENV have been rarely reported to cause congenital diseases. Here, we compared infection with a contemporary ZIKV strain (FSS13025) to YFV17D and DENV-4 in human monocytic cells (THP-1) and first-trimester trophoblasts (HTR-8)...
January 10, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29330892/ophthalmic-artery-doppler-prediction-of-preeclampsia-a-systematic-review-and-meta-analysis
#6
REVIEW
Erkan Kalafat, Ariana Laoreti, Asma Khalil, Fabricio Da Silva Costa, Basky Thilaganathan
OBJECTIVE: To determine the accuracy of ophthalmic artery Doppler in pregnancy for the prediction of preeclampsia. METHODS: MEDLINE (1947-2017), EMBASE (1974-2017), CINAHL (inception-2017) and the Cochrane Library (inception-2017) were searched for relevant citations without language restrictions. Two reviewers independently selected studies that evaluated the accuracy of ophthalmic artery Doppler to predict the development of preeclampsia and performed data extraction to construct 2 × 2 tables...
January 12, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29330799/hypoxia-signaling-and-placental-adaptations
#7
Damayanti Chakraborty, Regan L Scott, Michael J Soares
Oxygen is an essential nutrient for cells. Oxygen is delivered to tissues via red blood cells through the vasculature. Molecular mechanisms mediating cellular responses to low oxygen tension have been identified. Hypoxia-inducible factors (HIFs) are activated by low oxygen and promote transcriptional regulation of downstream effector genes, which lead to cellular adaptations. Controlled hypoxia exposure is utilized as an experimental tool to investigate biological processes, regulating cellular adaptations...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29329728/gene-expression-patterns-associated-with-human-placental-trophoblast-differentiation
#8
Shi-Wen Jiang, Wei Zhou, Jianhao Wang, Lauren M Little, Lynn Leaphart, Jacob Jay, Eseosaserea Igbinigie, Haibin Chen, Jinping Li
Cell fusion is a hallmark of placental trophoblast cell differentiation and the mature syncytiotrophoblasts play essential roles for fetal-maternal exchange and production of pregnancy-related hormones. Using a well-established in vitro trophoblast differentiation model, we performed a microarray analysis on mRNA expression in trophoblast and syncytiotrophoblast cell cultures. Dramatic changes in gene expression patterns were detected during trophoblast differentiation. Real-time PCR analysis confirmed the reliability of the microarray data...
January 9, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29325416/igy-reduces-afb1-induced-cytotoxicity-cellular-dysfunction-and-genotoxicity-in-human-l-02-hepatocytes-and-swan-71-trophoblasts
#9
Taotao Qiu, Xing Shen, Zhen Tian, Riming Huang, Xiangmei Li, Juan Wang, Rong Wang, Yuanming Sun, Yiguo Jiang, Huidong Zhang, Hongtao Lei
Aflatoxin B1 (AFB1) causes hepatotoxic, genotoxic, and immuno¬toxic effects in a variety of species. Although various neutralizing agents of AFB1 toxicity have been studied, the egg yolk immunoglobulins (IgY) detoxification of small molecular toxins and the mechanisms underlying such effects have not yet been reported. In this investigation, anti-AFB1 IgY against AFB1 was successfully raised, and a competitive indirect enzyme-linked immunosorbent assay was established with a sensitive half-maximal inhibitory concentration (IC50, 2...
January 11, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29325127/inhibiting-trophoblast-par-1-overexpression-suppresses-sflt-1-induced-anti-angiogenesis-and-abnormal-vascular-remodeling-a-possible-therapeutic-approach-for-preeclampsia
#10
Yin Zhao, YanFang Zheng, XiaoXia Liu, QingQing Luo, Di Wu, XiaoPing Liu, Li Zou
STUDY QUESTION: Is it possible to improve vascular remodeling by inhibiting the excessive expression of protease activated receptor 1 (PAR-1) in trophoblast of abnormal placenta? SUMMARY ANSWER: Inhibition of trophoblast PAR-1 overexpression may promote placental angiogenesis and vascular remodeling, offering an alternative therapeutic approach for preeclampsia. WHAT IS KNOWN ALREADY: PAR-1 is high-affinity receptor of thrombin. Thrombin increases sFlt-1 secretion in trophoblast via the activation of PAR-1...
January 9, 2018: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29324974/the-role-of-endoplasmic-reticulum-aminopeptidase-2-erap2-in-modulating-immune-detection-of-choriocarcinoma
#11
Michelle D Warthan, Sonya L Washington, Samone E Franzese, Ronald M Ramus, Kyu-Rae Kim, Timothy P York, Efstratios Stratikos, Jerome F Strauss, Eun D Lee
Gestational choriocarcinomas are derived from placental trophoblast cells, with HLA-C being the only class I polymorphic molecule expressed. However, choriocarcinomas have not been profiled for endoplasmic reticulum aminopeptidase 2 (ERAP2) expression. ERAP2 trims peptides presented by human leukocyte antigens (HLA) have shown to modulate immune response. Over 50% of choriocacinomas we screened lack ERAP2 expression, which suggests the absence of ERAP2 expression allows immune evasion of choriocarcinoma cells...
January 9, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29324606/obstetric-outcomes-after-failed-hysteroscopic-and-laparoscopic-sterilization-procedures
#12
Kristyn Brandi, Jake R Morgan, Michael K Paasche-Orlow, Rebecca B Perkins, OʼConnell Katharine White
OBJECTIVE: To compare obstetric outcomes after failed hysteroscopic and laparoscopic sterilization. METHODS: This retrospective cohort study examined pregnancy outcomes including live birth, preterm birth, stillbirth, spontaneous abortion, therapeutic abortion, ectopic pregnancies, and gestational trophoblastic disease using a commercial claims administrative database for the years 2007-2013. We used a Z-test to compare pregnancy outcomes per 100 person-years based on type of sterilization...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29324544/gestational-trophoblastic-disease-electronic-consults-what-do-patients-and-physicians-want-to-know
#13
Roni Nitecki, Ross S Berkowitz, Kevin M Elias, Donald P Goldstein, Neil S Horowitz
OBJECTIVES: Given the rarity of gestational trophoblastic disease (GTD), specialized regional and national centers for GTD have been established. These centers serve at least 3 purposes: to improve care for women with GTD, to enhance research though collaboration, and to educate other clinicians. This study was undertaken to understand the potential GTD knowledge gap by examining both patient and physician inquiries received at a specialized GTD center. METHODS: All electronic consults received by specialists at our center between March 2016 and March 2017 were analyzed...
January 10, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29324534/reproductive-outcomes-after-gestational-trophoblastic-neoplasia-a-comparison-between-single-agent-and-multiagent-chemotherapy-retrospective-analysis-from-the-mito-9-group
#14
Raffaella Cioffi, Alice Bergamini, Angiolo Gadducci, Gennaro Cormio, Veronica Giorgione, Micaela Petrone, Emanuela Rabaiotti, Francesca Pella, Massimo Candiani, Giorgia Mangili
OBJECTIVES: Gestational trophoblastic neoplasia affects women of reproductive age and is usually treated by chemotherapy. Major concerns related to chemotherapy in young women are the possible infertility, risk of early menopause, and teratogenic effects on subsequent pregnancies. The study's aim was to analyze menstrual and reproductive outcomes of women treated with single-agent versus multiagent chemotherapy for gestational trophoblastic neoplasia. METHODS: One-hundred fifty-one patients were treated...
January 10, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29323809/case-report-of-an-ectopic-molar-pregnancy-in-the-presence-of-an-intrauterine-device
#15
Deborah A Simon, Angela L Smith, John R Holzhauer
BACKGROUND: Ectopic molar pregnancy is a rare phenomenon and has not been reported in the presence of an intrauterine device (IUD). Clinical diagnosis of molar pregnancy is challenging and requires careful follow-up. CASE: A 25-year-old woman (gravida 2, para 0) with a copper IUD in place presented with a positive pregnancy test. Diagnosis of the complete hydatidiform mole was pathologically confirmed after surgery following clinical and sonographic investigations that identified a left-sided ectopic pregnancy...
November 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29319820/embryo-implantation-war-in-times-of-love
#16
Nancy Ashary, Abhishek Tiwari, Deepak Modi
Contrary to widespread belief, the implantation of an embryo for the initiation of pregnancy is like a battle, in that the embryo uses a variety of coercive tactics to force its acceptance by the endometrium. We propose that embryo implantation involves a three step process: 1) identification of a receptive endometrium; 2) superimposition of a blastocyst-derived signature onto the receptive endometrium prior to implantation; and finally 3) breaching by the embryo and trophoblast invasion, culminating in decidualization and placentation...
January 8, 2018: Endocrinology
https://www.readbyqxmd.com/read/29319206/butyl-paraben-promotes-apoptosis-in-human-trophoblast-cells-through-increased-oxidative-stress-induced-endoplasmic-reticulum-stress
#17
Changwon Yang, Whasun Lim, Fuller W Bazer, Gwonhwa Song
Butyl paraben (BP) has antimicrobial effects and is widely used as a preservative in cosmetics, foods, and pharmaceuticals. It is also absorbed into various tissues of the human body. It is known that BP is measurable in maternal and fetal tissues during pregnancy, but the effects of BP on placental development, essential for maintaining normal pregnancy, are unclear. Therefore, we investigated the effect of BP on the proliferation, apoptosis, and invasiveness of human trophoblast cells, using an HTR8/SVneo cell line...
January 10, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29317509/human-placental-syncytiotrophoblasts-restrict-toxoplasma-gondii-attachment-and-replication-and-respond-to-infection-by-producing-immunomodulatory-chemokines
#18
Stephanie E Ander, Elizabeth N Rudzki, Nitin Arora, Yoel Sadovsky, Carolyn B Coyne, Jon P Boyle
Toxoplasma gondii is a major source of congenital disease worldwide, but the cellular and molecular factors associated with its vertical transmission are largely unknown. In humans, the placenta forms the key interface between the maternal and fetal compartments and forms the primary barrier that restricts the hematogenous spread of microorganisms. Here, we utilized primary human trophoblast (PHT) cells isolated from full-term placentas and human midgestation chorionic villous explants to determine the mechanisms by which human trophoblasts restrict and respond to T...
January 9, 2018: MBio
https://www.readbyqxmd.com/read/29312622/acute-nutritional-stress-during-pregnancy-affects-placental-efficiency-fetal-growth-and-adult-glucose-homeostasis
#19
Sajida Malik, Alan Diot, Karl Morten, Eszter Dombi, Manu Vatish, C A Richard Boyd, Joanna Poulton
Exposure to maternal malnutrition impairs postnatal health. Acute nutritional stress is less clearly implicated in intrauterine programming. We studied the effects of stressing pregnant mothers on perinatal growth and adult glucose homeostasis. We compared one group ("stressed", mothers fasted for 16 hours) with controls ("unstressed"). We found that fasting stress had adverse effects on the weight of the fetuses conceived (p<0.005) and the placental efficiency (p<0.001) in stressed compared to unstressed offspring...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29312557/involvement-of-the-oncogene-b-cell-lymphoma-6-in-the-fusion-and-differentiation-process-of-trophoblastic-cells-of-the-placenta
#20
Britta Jasmer, Cornelia Muschol-Steinmetz, Nina-Naomi Kreis, Alexandra Friemel, Ulrikke Kielland-Kaisen, Dörthe Brüggmann, Lukas Jennewein, Roman Allert, Christine Solbach, Juping Yuan, Frank Louwen
The oncogene B-cell lymphoma 6 (BCL6) is associated with lymphomagenesis. Intriguingly, its expression is increased in preeclamptic placentas. Preeclampsia is one of the leading causes of maternal and perinatal mortality and morbidity. Preeclamptic placentas are characterized by various defects like deregulated differentiation and impaired fusion of trophoblasts. Its pathogenesis is however not totally understood. We show here that BCL6 is present throughout the cell fusion process in the fusogenic trophoblastic cell line BeWo...
December 12, 2017: Oncotarget
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