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placental angiogenic factors

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https://www.readbyqxmd.com/read/28216083/maternal-vitamin-d-sufficiency-and-reduced-placental-gene-expression-in-angiogenic-biomarkers-related-to-comorbidities-of-pregnancy
#1
Elizabeth V Schulz, Lori Cruze, Wei Wei, John Gehris, Carol L Wagner
INTRODUCTION: Maternal circulating 25-hydroxyvitamin D [25(OH)D] has been shown to optimize production of 1,25-dihydroxyvitamin D [1,25(OH)2D] during pregnancy at approximately 100nmoles/L, which has pronounced effects on fetal health outcomes. Additionally, associations are noted between low maternal 25(OH)D concentrations and vascular pregnancy complications, such as preeclampsia. To further elucidate the effects of vitamin D activity in pregnancy, we investigated the role of maternal 25(OH)D, the nutritional indicator of vitamin D status, in relation to placental maintenance and, specifically, expression of placental gene targets related to angiogenesis and vitamin D metabolism...
February 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28164532/clinical-assessment-of-soluble-fms-like-tyrosine-kinase-1-placental-growth-factor-ratio-for-the-diagnostic-and-the-prognosis-of-preeclampsia-in-the-second-trimester
#2
Dalenda Chelli, Asma Hamdi, Sarah Saoudi, Amel A Jenayah, Armand Zagre, Haithem Jguerim, Channoufi Bedis, Ezzeddine Sfar
BACKGROUND: Preeclampsia is one of the most common and serious complications of pregnancy. Various reports have demonstrated that disturbances in angiogenic and antiangiogenic factors are implicated in its pathogenesis and have possible relevance in its diagnosis and prognosis. METHODS: In this case-control study, we enrolled 73 patients with 34 preeclamptic cases diagnosed according to clinical criteria and dosing of proteinuria. The cases were matched to controls at the same age and parity...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28162769/cord-blood-biomarkers-of-placental-maternal-vascular-underperfusion-predict-bronchopulmonary-dysplasia-associated-pulmonary-hypertension
#3
Karen K Mestan, Nina Gotteiner, Nicolas Porta, William Grobman, Emily J Su, Linda M Ernst
OBJECTIVE: To assess whether cord blood biomarkers associated with placental maternal vascular underperfusion (MVU) are predictive of bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH). STUDY DESIGN: Premature infants enrolled in a longitudinal cohort study were randomly sampled from 4 gestational age strata (n = 190, range 23-36 weeks). Fifteen factors from a human angiogenesis panel were measured in cord blood using multiplex immunoassay...
February 2, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28155021/anti-angiogenesis-and-preeclampsia-in-2016
#4
REVIEW
Susanne Schrey-Petersen, Holger Stepan
PURPOSE OF REVIEW: Preeclampsia remains one of the most important complications in pregnancy worldwide. With this review, we aim to give an overview on important research findings over the last years and their effects on current clinical management. RECENT FINDINGS: The association between preeclampsia and altered angiogenesis is nowadays widely accepted. Only during the last years, assessment of angiogenic factors such as the soluble fms-like tyrosine kinase-1-to-placental growth factor (sFlt-1/PlGF) ratio has become available to everyday clinical practice with commercially available automated measurements...
January 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28153659/enoxaparin-for-the-prevention-of-preeclampsia-and%C3%A2-intrauterine-growth-restriction-in-women-with%C3%A2-a%C3%A2-history-%C3%A2-a%C3%A2-randomized-trial
#5
Katie M Groom, Lesley M McCowan, Laura K Mackay, Arier C Lee, Joanne M Said, Stefan C Kane, Susan P Walker, Thijs E van Mens, Natalie J Hannan, Stephen Tong, Larry W Chamley, Peter R Stone, Claire McLintock
BACKGROUND: Preeclampsia and small-for-gestational-age pregnancy are major causes of maternal and perinatal morbidity and mortality. Women with a previous pregnancy affected by these conditions are at an increased risk of recurrence in a future pregnancy. Past trials evaluating the effect of low-molecular-weight heparin for the prevention of recurrence of preeclampsia and small-for-gestational-age pregnancy have shown conflicting results with high levels of heterogeneity displayed when trials were compared...
January 30, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28121958/circulating-angiogenic-factors-are-related-to-the-severity-of-gestational-hypertension-and-preeclampsia-and-their-adverse-outcomes
#6
Alfredo Leaños-Miranda, Francisco Méndez-Aguilar, Karla Leticia Ramírez-Valenzuela, Marilyn Serrano-Rodríguez, Guadalupe Berumen-Lechuga, Carlos José Molina-Pérez, Irma Isordia-Salas, Inova Campos-Galicia
Gestational hypertension (GH) and preeclampsia (PE) are characterized by an imbalance in angiogenic factors. However, the relationship among these factors with the severity of hypertensive disorders of pregnancy (HDP) and adverse outcomes are not fully elucidated. We examined whether these biomarkers are related with the severity of HDP and adverse outcomes.Using a cross-sectional design, serum concentrations of placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1), and soluble endoglin were determined in 764 pregnant women: 75 healthy pregnant, 83 with mild GH (mGH), 105 with severe GH (sGH), 122 with mild PE (mPE), and 379 with severe PE (sPE)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28119994/placental-growth-factor-and-vascular-endothelial-growth-factor-together-regulate-tumour-progression-via-increased-vasculature-in-cutaneous-t-cell-lymphoma
#7
Tomomitsu Miyagaki, Makoto Sugaya, Tomonori Oka, Naomi Takahashi, Makiko Kawaguchi, Hiraku Suga, Hideki Fujita, Ayumi Yoshizaki, Yoshihide Asano, Shinichi Sato
Angiogenesis is regarded as an essential step in supporting tumour growth and metastasis. In haematological malignancies, including cutaneous T cell lymphoma (CTCL), angiogenesis is increased and serum levels of some pro-angiogenic markers are elevated. The aim of this study was to investigate expression levels of placental growth factor (PlGF) and vascular endothelial growth factor (VEGF)-A in lesional skin and sera in patients with CTCL, and to assess the association of these factors with development of CTCL...
January 25, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28112754/gdm-alters-paracrine-regulation-of-feto-placental-angiogenesis-via-the-trophoblast
#8
Jelena Loegl, Erika Nussbaumer, Silvija Cvitic, Berthold Huppertz, Gernot Desoye, Ursula Hiden
Feto-placental angiogenesis and vascular development are tightly regulated by pro- and anti-angiogenic factors. Villous trophoblast may be a major source of these factors. It forms the classical placental barrier between mother and fetus, and is thus exposed to maternal influences as well. Metabolic and hormonal derangements in gestational diabetes mellitus (GDM) affect feto-placental angiogenesis and vascular growth. Here we hypothesized that GDM alters the trophoblast secretome, which will modulate the paracrine regulation of feto-placental angiogenesis...
January 23, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28067578/relationship-between-hypoxia-and-downstream-pathogenic-pathways-in-preeclampsia
#9
Henri Augusto Korkes, Leandro De Oliveira, Nelson Sass, Saira Salahuddin, S Ananth Karumanchi, Augustine Rajakumar
Defects in angiogenesis and mitochondrial function in the placenta contribute to the pathogenesis of preeclampsia; however upstream regulators of these pathways are not known. It has been argued that placental hypoxia secondary to abnormal spiral artery remodeling may play a causal role in the angiogenic and mitochondrial abnormalities noted in preeclampsia. The aim of this study was to evaluate the relationship between hypoxia-inducible factor-1α (HIF-1α) ¸ a surrogate of hypoxia, and soluble fms-tyrosine kinase 1 (sFlt1), a circulating anti-angiogenic factor, and microRNA 210 (miR-210), a microRNA that regulates mitochondrial function, in human placentas from preeclamptic and non-hypertensive pregnancies...
January 9, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28059847/angiogenic-and-antiangiogenic-markers-for-prediction-and-risk-classification-of-preeclampsia
#10
Amol K Malshe, Baha M Sibai
Preeclampsia is a pregnancy-specific hypertensive disorder with multisystem involvement and is a significant cause of obstetric morbidity and mortality worldwide. A major issue in the treatment of preeclampsia stems from its still significant rates of misclassification and misdiagnosis. Angiogenic factors have been speculated as a possible diagnostic modality due to a perceived imbalance in angiogenesis in preeclampsia. Factors currently studied include soluble fms-like protein kinase 1 and placental growth factor...
March 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28052029/arg-leu-tyr-glu-tetrapeptide-inhibits-tumor-progression-by-suppressing-angiogenesis-and-vascular-permeability-via-vegf-receptor-2-antagonism
#11
Yi-Yong Baek, Dong-Keon Lee, Joohwan Kim, Ji-Hee Kim, Wonjin Park, Taesam Kim, Sanghwa Han, Dooil Jeoung, Ji Chang You, Hansoo Lee, Moo-Ho Won, Kwon-Soo Ha, Young-Guen Kwon, Young-Myeong Kim
The tetrapeptide Arg-Leu-Tyr-Glu (RLYE) is known to inhibit vascular endothelial growth factor-A (VEGF-A)-induced angiogenesis in vitro. Herein, we examined its underlying mechanism and antitumor activity associated with vascular remodeling. RLYE inhibited VEGF-A-induced angiogenesis in a mouse model and suppressed VEGF-A-induced angiogenic signal cascades in human endothelial cells. However, RLYE showed no inhibitory effect on VEGF-A-induced proliferation and migration of multiple myeloma cells expressing VEGF receptor (VEGFR)-1, but not VEGFR-2...
December 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/28002269/efficacy-of-intravitreal-aflibercept-in-macular-telangiectasia-type-1-is-linked-to-the-ocular-angiogenic-profile
#12
Laura Kowalczuk, Alexandre Matet, Ali Dirani, Alejandra Daruich, Aude Ambresin, Irmela Mantel, Richard F Spaide, Natacha Turck, Francine Behar-Cohen
PURPOSE: To evaluate intravitreal aflibercept in macular telangiectasia Type 1 (MacTel 1) patients and measure their ocular angiogenic profile. METHODS: Eight subjects with MacTel 1 refractory to bevacizumab, ranibizumab, or laser therapy and switched to aflibercept were included. Best-corrected visual acuity, central macular thickness, and cystic areas quantified on optical coherence tomography B-scans were assessed during 12 months. Perifoveal capillary densities were measured on optical coherence tomography angiography...
December 20, 2016: Retina
https://www.readbyqxmd.com/read/27986932/placental-specific-sflt-1-role-in-pre-eclamptic-pathophysiology-and-its-translational-possibilities-for-clinical-prediction-and-diagnosis
#13
REVIEW
K R Palmer, S Tong, T J Kaitu'u-Lino
Pre-eclampsia is a common obstetric complication globally responsible for a significant burden of maternal and perinatal morbidity and mortality. Central to its pathophysiology is the anti-angiogenic protein, soluble fms-like tyrosine kinase-1 (sFLT-1). sFLT-1 is released from a range of tissues into the circulation, where it antagonizes the activity of vascular endothelial growth factor and placental growth factor leading to endothelial dysfunction. It is this widespread endothelial dysfunction that produces the clinical features of pre-eclampsia including hypertension and proteinuria...
December 16, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27983995/n-terminal-pro-b-type-natriuretic-peptide-and-angiogenic-biomarkers-in-the-prognosis-of-adverse-outcomes-in-women-with-suspected-preeclampsia
#14
Indira Álvarez-Fernández, Belén Prieto, Verónica Rodríguez, Yolanda Ruano, Ana I Escudero, Francisco V Álvarez
BACKGROUND: This study compares the performance of the soluble fms-like tyrosine kinase 1 to placental growth factor (sFlt-1/PlGF) ratio and the cardiac biomarker N-terminal pro-B type natriuretic peptide (NT-proBNP) in the prediction of adverse outcomes in women with suspicion of PE. METHODS: A retrospective cohort study was conducted on women admitted at triage with signs and/or symptoms of PE (n=340). Serum levels of sFlt-1, PlGF and NT-proBNP were determined by an electrochemiluminescence immunoassay (Roche Diagnostics)...
October 28, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27965171/human-placenta-hydrogel-reduces-scarring-in-a-rat-model-of-cardiac-ischemia-and-enhances-cardiomyocyte-and-stem-cell-cultures
#15
Michael P Francis, Erick Breathwaite, Anna A Bulysheva, Frency Varghese, Rudy U Rodriguez, Sucharita Dutta, Iurii Semenov, Rebecca Ogle, Alexander Huber, Alexandra-Madelaine Tichy, Silvia Chen, Christian Zemlin
INTRODUCTION: Xenogeneic extracellular matrix (ECM) hydrogels have shown promise in remediating cardiac ischemia damage in animal models, yet analogous human ECM hydrogels have not been well development. An original human placenta-derived hydrogel (hpECM) preparation was thus generated for assessment in cardiomyocyte cell culture and therapeutic cardiac injection applications. METHODS AND RESULTS: Hybrid orbitrap-quadrupole mass spectrometry and ELISAs showed hpECM to be rich in collagens, basement membrane proteins, and regenerative growth factors (e...
December 10, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27942839/immune-modulation-associated-with-vascular-endothelial-growth-factor-vegf-blockade-in-patients-with-glioblastoma
#16
Alissa A Thomas, Jan L Fisher, Thomas H Hampton, Brock C Christensen, Gregory J Tsongalis, Gilbert J Rahme, Chery A Whipple, Sandra E Steel, Melissa C Davis, Arti B Gaur, Lionel D Lewis, Marc S Ernstoff, Camilo E Fadul
BACKGROUND: Vascular endothelial growth factor (VEGF), in addition to being pro-angiogenic, is an immunomodulatory cytokine systemically and in the tumor microenvironment. We previously reported the immunomodulatory effects of radiation and temozolomide (TMZ) in newly diagnosed glioblastoma. This study aimed to assess changes in peripheral blood mononuclear cell (PBMC) populations, plasma cytokines, and growth factor concentrations following treatment with radiation, TMZ, and bevacizumab (BEV)...
December 9, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27940029/sflt-1-plgf-sflt-1-plgf-ratio-and-uterine-artery-doppler-for-preeclampsia-diagnostics
#17
Viktorija Tarasevičienė, Regina Grybauskienė, Regina Mačiulevičienė
BACKGROUND AND OBJECTIVE: Angiogenic factors such as soluble fms-like tyrosine kinase 1 (sFlt-1) and placental growth factor (PlGF) play a key role in the pathogenesis of preeclampsia. Uterine artery (UA) blood flow is important for preeclamptic pregnancy outcome, but small amount of evidence suggests UA dopplerometry for preeclampsia diagnostics and management. The aim of our study was to compare the value of angiogenic factors and UA dopplerometry in preeclampsia diagnosis and determine cut-off values to obtain the highest sensitivity and specificity of the parameter...
2016: Medicina
https://www.readbyqxmd.com/read/27939478/gelsolin-is-an-endogenous-inhibitor-of-syncytiotrophoblast-extracellular-vesicle-shedding-in-pregnancy
#18
Neil A Nadkarni, Augustine Rajakumar, Nikita Mokhashi, Suzanne D Burke, Sarosh Rana, Saira Salahuddin, Quynh Dang, Ravi Thadhani, Ramaswamy Krishnan, Thomas P Stossel, S Ananth Karumanchi
BACKGROUND: Preeclampsia, a pregnancy-specific inflammatory disorder, is characterized by high levels of anti-angiogenic protein, soluble fms-like tyrosine kinase 1 (sFlt1), in the maternal circulation. sFlt1 producing molecular machinery is present in syncytiotrophoblast extracellular vesicles that are released by the placenta into maternal plasma during normal pregnancy, a process greatly accelerated in preeclampsia. We hypothesized that syncytiotrophoblast extracellular vesicles exposes cytoplasmic actin to plasma resulting in depletion of plasma gelsolin (pGSN), an abundant plasma protein that scavenges circulating actin and other pro-inflammatory mediators...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27939475/trophoblast-mitochondrial-function-is-impaired-in-preeclampsia-and-correlates-negatively-with-the-expression-of-soluble-fms-like-tyrosine-kinase-1
#19
Zsuzsanna K Zsengellér, Augustine Rajakumar, Jon T Hunter, Saira Salahuddin, Sarosh Rana, Isaac E Stillman, S Ananth Karumanchi
Preeclampsia is a common medical complication of pregnancy that is associated with significant morbidity and mortality to the mother and the baby. Extensive human epidemiological and experimental studies suggest that excess placental soluble fms-like tyrosine kinase 1, a potent anti-angiogenic factor leads to the maternal hypertension, proteinuria and other systemic complications of preeclampsia. To evaluate the mechanisms of the aberrant placental sFlt1 expression, we studied the role of mitochondrial dysfunction as one possible etiological factor...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27936076/angiogenic-capacity-of-periodontal-ligament-stem-cells-pretreated-with-deferoxamine-and-or-fibroblast-growth-factor-2
#20
Jessica Ratajczak, Petra Hilkens, Pascal Gervois, Esther Wolfs, Reinhilde Jacobs, Ivo Lambrichts, Annelies Bronckaers
Periodontal ligament stem cells (PDLSCs) represent a good source of multipotent cells for cell-based therapies in regenerative medicine. The success rate of these treatments is severely dependent on the establishment of adequate vasculature in order to provide oxygen and nutrients to the transplanted cells. Pharmacological preconditioning of stem cells has been proposed as a promising method to augment their therapeutic efficacy. In this study, the aim was to improve the intrinsic angiogenic properties of PDLSCs by in vitro pretreatment with deferoxamine (DFX; 100μM), fibroblast growth factor-2 (FGF-2; 10ng/mL) or both substances combined...
2016: PloS One
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