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placental cytokines in human pregnancy

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https://www.readbyqxmd.com/read/28520923/decrease-in-expression-of-hoxa10-in-the-decidua-after-embryo-implantation-promotes-trophoblast-invasion
#1
Geeta Godbole, Pankaj Suman, Ankita Malik, Mosami Galvankar, Niraj Joshi, Asgerally Fazleabas, Satish Kumar Gupta, Deepak Modi
A central step towards successful pregnancy involves invasion of the trophoblast cells into the decidua for placentation. Herein, we show that in the human and baboon decidua, HOXA10 expression is downregulated post-implantation and this reduction is most prominent in the decidual cells juxtaposed to the invading placental villi. Intriguingly, the supernatants derived from HOXA10 depleted human decidual cells increase the invasiveness of the trophoblast cell lines ACH-3P and JEG3 in vitro; this increase is due to higher expression and activity of matrix metalloproteases (MMPs) and reduced expression of tissue inhibitors of MMPs (TIMPs) in both the cell lines...
May 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28515391/advanced-glycation-end-products-regulate-interleukin-1%C3%AE-production-in-human-placenta
#2
Kotomi Seno, Saoko Sase, Ayae Ozeki, Hironori Takahashi, Akihide Ohkuchi, Hirotada Suzuki, Shigeki Matsubara, Hisataka Iwata, Takehito Kuwayama, Koumei Shirasuna
Maternal obesity is a major risk factor for pregnancy complications, causing inflammatory cytokine release in the placenta, including interleukin-1β (IL-1β), IL-6, and IL-8. Pregnant women with obesity develop accelerated systemic and placental inflammation with elevated circulating advanced glycation end products (AGEs). IL-1β is a pivotal inflammatory cytokine associated with obesity and pregnancy complications, and its production is regulated by NLR family pyrin domain-containing 3 (NLRP3) inflammasomes...
May 18, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28500823/aflatoxin-exposure-during-pregnancy-maternal-anemia-and-adverse-birth-outcomes
#3
Laura E Smith, Andrew J Prendergast, Paul C Turner, Jean H Humphrey, Rebecca J Stoltzfus
AbstractPregnant women and their developing fetuses are vulnerable to multiple environmental insults, including exposure to aflatoxin, a mycotoxin that may contaminate as much as 25% of the world food supply. We reviewed and integrated findings from studies of aflatoxin exposure during pregnancy and evaluated potential links to adverse pregnancy outcomes. We identified 27 studies (10 human cross-sectional studies and 17 animal studies) assessing the relationship between aflatoxin exposure and adverse birth outcomes or anemia...
April 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28487027/interleukin-11-up-regulates-endoplasmic-reticulum-stress-induced-target-pdia4-in-human-first-trimester-placenta-and-in%C3%A2-vivo-in-mice
#4
A L Winship, K Sorby, J Correia, A Rainczuk, J Yap, E Dimitriadis
Interleukin (IL)11 is a crucial factor for human trophoblast function and placentation. Elevated levels are associated with pregnancy complications including preeclampsia, intrauterine growth restriction (IUGR) and preterm birth. However, the regulation of IL11 in the placenta has not been investigated. We examined the effect of pro-inflammatory cytokines IL1β and TNFα, as well as low oxygen tension (2%) on IL11 levels in first trimester placental villous explants. IL1β upregulated IL11 mRNA and protein, while TNFα and low oxygen had no effect...
May 2017: Placenta
https://www.readbyqxmd.com/read/28487013/placental-pim-1-expression-is-increased-in-obesity-and-regulates-cytokine-and-toll-like-receptor-mediated-inflammation
#5
Stella Liong, Gillian Barker, Martha Lappas
INTRODUCTION: Obesity is a growing epidemic, and as a consequence the number of obese pregnancies has also increased. Pregnancy is characterised by maternal and placental inflammation which is intensified with maternal obesity. The proviral integration site for Moloney murine leukemic virus (Pim)-1 protein is a serine/threonine kinase involved in a wide range of inflammatory diseases. In relation to obesity, however, its role has not been elucidated in human placenta. The aims were to determine the placental expression of Pim-1 with pre-existing maternal obesity and its role in regulating placental inflammation associated with obesity...
May 2017: Placenta
https://www.readbyqxmd.com/read/28420494/molecular-regulation-and-role-of-angiogenesis-in-reproduction
#6
REVIEW
Momchil Rizov, Petya Andreeva, Ivanka Dimova
Angiogenesis is an essential process for proper functioning of the female reproductive system and for successful pregnancy realization. The multitude of factors required for physiological angiogenesis and the complexity of regulation of their temporal-spatial activities contribute to aberrations in human fertilization and pregnancy outcomes. In this study, we reviewed the current knowledge of the temporal expression patterns, functions, and regulatory mechanisms of angiogenic factors during foliculogenesis, early implantation/placentation and embryo development, as well as recurrent spontaneous abortions...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28413491/upregulated-unique-long-16-binding-protein-1-detected-in-preeclamptic-placenta-affects-human-extravillous-trophoblast-cell-line-htr-8-svneo-invasion-by-modulating-the-function-of-uterine-natural-killer-cells
#7
Jing Liu, Guang Song, Xuewen Lin, Xining Pang, Tao Meng
Well-controlled trophoblast invasion at the maternal-fetal interface is crucial for normal placentation and successful pregnancy, otherwise pathological conditions of pregnancy occur, such as preeclampsia. In previous studies, it has been demonstrated that unique long 16 binding protein (ULBP)1, a ligand for the natural-killer group (NKG)2D receptor on uterine natural killer (uNK) cells, is upregulated in the placenta in patients with preeclampsia. As they are present on the majority of the decidua, uNK have an important role in pregnancy...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28395334/natural-killer-cell-deficiency-alters-placental-development-in-rats
#8
Stephen J Renaud, Regan L Scott, Damayanti Chakraborty, Mohammad A K Rumi, Michael J Soares
Natural killer (NK) cells are the most prevalent leukocyte population in the uterus during early pregnancy. Natural killer cells contribute to uterine vascular (spiral artery) remodeling in preparation for the increased demand on these vessels later in pregnancy. A second wave of spiral artery modification is directed by invasive trophoblast cells. The significance of the initial wave of NK-cell-mediated vascular remodeling in species exhibiting deep trophoblast invasion such as humans and rats is not known...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28380025/effect-of-proline-rich-15-deficiency-on-trophoblast-viability-and-survival
#9
Katherine C Gates, Lindsey N Goetzmann, Jeremy D Cantlon, Kimberly M Jeckel, Russell V Anthony
Deviations from the normal program of gene expression during early pregnancy can lead to early embryonic loss as well as dysfunctional placentation, which can cause significant morbidity and mortality. Proline rich 15 (PRR15) is a low molecular weight nuclear protein expressed by the trophoblast during early gestation. Lentivirus-mediated knockdown of PRR15 mRNA in ovine trophectoderm led to demise of the embryo by gestational day 15, providing compelling evidence that PRR15 expression is critical during this precarious window of development...
2017: PloS One
https://www.readbyqxmd.com/read/28284455/uterine-nk-cells-and-macrophages-in-pregnancy
#10
Marijke M Faas, Paul de Vos
The presence of immune cells in the placental bed is important for both mother and child. Although various immune cells can be found in the placental bed, such as regulatory T cells and dendritic cells, uterine NK cells and macrophages are the most prominent immune cells in the placental bed in early pregnancy. uNK cell and macrophage numbers in the placental bed decrease in the third trimester. These cells seem to be specifically adapted for their function and environment. uNK cells do not show cytotoxic activity, but are producers of cytokines, growth factors and many other factors...
March 2, 2017: Placenta
https://www.readbyqxmd.com/read/28161055/maternal-type-1-diabetes-activates-stress-response-in-early-placenta
#11
Martin Gauster, Alejandro Majali-Martinez, Sabine Maninger, Elisabeth Gutschi, Patrick H Greimel, Marina Ivanisevic, Josip Djelmis, Gernot Desoye, Ursula Hiden
INTRODUCTION: Human pregnancy and in particular the first trimester, is a period highly susceptible towards adverse insults such as oxidative stress, which may lead to inadequate embryonic and feto-placental development. Diabetes mellitus is associated with increased oxidative stress caused by hyperglycemia, reactive oxygen species (ROS) production and inflammatory signals. In pregnancy, diabetes elevates the risk for early pregnancy loss, preeclampsia and fetal growth restriction, pathologies that origin from early placental maldevelopment...
February 2017: Placenta
https://www.readbyqxmd.com/read/28115513/proton-pump-inhibitors-decrease-soluble-fms-like-tyrosine-kinase-1-and-soluble-endoglin-secretion-decrease-hypertension-and-rescue-endothelial-dysfunction
#12
Kenji Onda, Stephen Tong, Sally Beard, Natalie Binder, Masanaga Muto, Sevvandi N Senadheera, Laura Parry, Mark Dilworth, Lewis Renshall, Fiona Brownfoot, Roxanne Hastie, Laura Tuohey, Kirsten Palmer, Toshihiko Hirano, Masahito Ikawa, Tu'uhevaha Kaitu'u-Lino, Natalie J Hannan
Preeclampsia is a severe complication of pregnancy. Antiangiogenic factors soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin are secreted in excess from the placenta, causing hypertension, endothelial dysfunction, and multiorgan injury. Oxidative stress and vascular inflammation exacerbate the endothelial injury. A drug that can block these pathophysiological steps would be an attractive treatment option. Proton pump inhibitors (PPIs) are safe in pregnancy where they are prescribed for gastric reflux...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28097431/placental-dapk1-and-autophagy-marker-lc3b-ii-are-dysregulated-by-tnf-%C3%AE-in-a-gestational-age-dependent-manner
#13
Andreas Prokesch, Astrid Blaschitz, Tamara Bauer, Gerit Moser, Ursula Hiden, Julianna Zadora, Ralf Dechend, Florian Herse, Martin Gauster
Autophagy, a cell-survival process responsible for degradation of protein aggregates and damaged organelles, is increasingly recognized as another mechanism essential for human placentation. A substantial body of experiments suggests inflammation and oxidative stress as the underlying stimuli for altered placental autophagy, giving rise to placenta dysfunction and pregnancy pathologies. Here, the hypothesis is tested whether or not pro-inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-α are able to influence the expression profile of autophagy genes in human first-trimester villous placenta...
January 17, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/27956621/expression-of-kir2ds1-by-decidual-natural-killer-cells-increases-their-ability-to-control-placental-hcmv-infection
#14
Ângela C Crespo, Jack L Strominger, Tamara Tilburgs
The combination of the activating killer cell Ig-like receptor 2DS1 (KIR2DS1) expressed by maternal decidual natural killer cells (dNK) and the presence of its ligand, the HLA-C allotype HLA-C2, expressed by fetal trophoblasts, reduces the risk of developing pregnancy complications. However, no molecular or cellular mechanism explains this genetic correlation. Here we demonstrate that KIR2DS1+ dNK acquired higher cytotoxic function than KIR2DS1- dNK when exposed to human cytomegalovirus (HCMV)-infected decidual stromal cells (DSC), particularly when DSCs express HLA-C2...
December 27, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27939894/review-fetal-maternal-communication-via-extracellular-vesicles-implications-for-complications-of-pregnancies
#15
REVIEW
Stefanie Adam, Omar Elfeky, Vyjayanthi Kinhal, Suchismita Dutta, Andrew Lai, Nanthini Jayabalan, Zarin Nuzhat, Carlos Palma, Gregory E Rice, Carlos Salomon
The maternal physiology experiences numerous changes during pregnancy which are essential in controlling and maintaining maternal metabolic adaptations and fetal development. The human placenta is an organ that serves as the primary interface between the maternal and fetal circulation, thereby supplying the fetus with nutrients, blood and oxygen through the umbilical cord. During gestation, the placenta continuously releases several molecules into maternal circulation, including hormones, proteins, RNA and DNA...
December 5, 2016: Placenta
https://www.readbyqxmd.com/read/27932441/trophoblast-cells-inhibit-neutrophil-extracellular-trap-formation-and-enhance-apoptosis-through-vasoactive-intestinal-peptide-mediated-pathways
#16
Guillermina Calo, Florencia Sabbione, Daiana Vota, Daniel Paparini, Rosanna Ramhorst, Analía Trevani, Claudia Pérez Leirós
STUDY QUESTION: Do human trophoblast cells modulate neutrophil extracellular trap (NET) formation, reactive oxygen species (ROS) synthesis and neutrophil apoptosis through mechanisms involving vasoactive intestinal peptide (VIP)? SUMMARY ANSWER: Trophoblast cells inhibited NET formation and ROS synthesis and enhanced neutrophil apoptosis through VIP-mediated pathways in a model of maternal-placental interaction. WHAT IS KNOWN ALREADY: Immune homeostasis maintenance at the maternal-placental interface is mostly coordinated by trophoblast cells...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27871471/endocan-expression-is-increased-in-the-placenta-from-obese-women-with-gestational-diabetes-mellitus
#17
Padma Murthi, Ramona Sarkis, Ratana Lim, Caitlyn Nguyen-Ngo, Anita Pratt, Stella Liong, Martha Lappas
INTRODUCTION: Endocan, a member of the proteoglycan family, is involved in a wide range of diseases including obesity and diabetes. The aim of this study was to determine the effect of (i) maternal obesity and gestational diabetes mellitus (GDM) on placental endocan expression; and (ii) endocan knockdown on markers of inflammation. METHODS: Endocan mRNA and protein expression was determined in human placenta from (i) lean and obese and normal glucose tolerant (NGT) pregnant women (n = 10 patients per group); and (ii) women with GDM and BMI-matched NGT women (n = 40 patients per group)...
December 2016: Placenta
https://www.readbyqxmd.com/read/27871461/nuclear-factor-of-activated-t-cells-nfat-regulates-soluble-fms-like-tyrosine-kinase-1-secretion-sflt-1-from-human-placenta
#18
Louie Ye, Amy Gratton, Natalie J Hannan, Ping Cannon, Minh Deo, Kirsten R Palmer, Stephen Tong, Tu'uhevaha J Kaitu'u-Lino, Fiona C Brownfoot
INTRODUCTION: Preeclampsia is a serious complication affecting 5-8% of pregnancies. Central to its pathogenesis is placental hypoxia and inflammation which leads to secretion of soluble fms-like tyrosine kinase 1 (sFlt-1). sFlt-1 causes widespread endothelial dysfunction. The molecular mechanisms regulating sFlt-1 production remain poorly understood. Recently, a binding site for the nuclear factor activated T cells (NFAT) transcription factor has been found on fms-like tyrosine kinase 1 (FLT-1) promoter...
December 2016: Placenta
https://www.readbyqxmd.com/read/27806983/the-protective-effect-of-apolipoprotein-in-models-of-trophoblast-invasion-and-preeclampsia
#19
Francesca Charlton, Gabriele Bobek, Tim Stait-Gardner, William S Price, Katrina M Mirabito Colafella, Bei Xu, Angela Makris, Kerry-Anne Rye, Annemarie Hennessy
Preeclampsia is a hypertensive disorder of pregnancy. It is associated with abnormal placentation via poor placental invasion of the uterine vasculature by trophoblast cells, leading to poor placental perfusion, oxidative stress, and inflammation, all of which are implicated in its pathogenesis. A dyslipidemia characterized by low plasma levels of high-density lipoproteins (HDL) and elevated triglycerides has been described in preeclampsia. Apolipoprotein A-I (apoA-I), a constituent of HDL is an anti-inflammatory agent...
January 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27760748/the-local-and-systemic-immune-response-to-intrauterine-lps-in-the-prepartum-mouse
#20
Lydia F Edey, Kieran P O'Dea, Bronwen R Herbert, Renyi Hua, Simon N Waddington, David A MacIntyre, Philip R Bennett, Masao Takata, Mark R Johnson
Inflammation plays a key role in human term and preterm labor (PTL). Intrauterine LPS has been widely used to model inflammation-induced complications of pregnancy, including PTL. It has been shown to induce an intense myometrial inflammatory cell infiltration, but the role of LPS-induced inflammatory cell activation in labor onset and fetal demise is unclear. We investigated this using a mouse model of PTL, where an intrauterine injection of 10 μg of LPS (serotype 0111:B4) was given at E16 of CD1 mouse pregnancy...
December 2016: Biology of Reproduction
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