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Exosome pregnancy

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https://www.readbyqxmd.com/read/29899331/placental-exosome-mediated-bta-mir-499-lin28b-let-7-axis-regulates-inflammatory-bias-during-early-pregnancy
#1
Gan Zhao, Chao Yang, Jing Yang, Pei Liu, Kangfeng Jiang, Aftab Shaukat, Haichong Wu, Ganzhen Deng
Abnormal inflammatory bias in the maternal-fetal interface leads to reproductive failure in mammals. Placental exosomes are involved in maternal-fetal communication during pregnancy. However, whether the placenta or fetus is involved in regulating the balance of uterine local inflammation through exosomes remains unclear, and the mechanism must be further explored. Here we demonstrated that placenta-specific exosomes are abundant in the peripheral blood of dairy cows during early pregnancy and selectively load miRNAs, such as bta-miR-499...
June 13, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29898663/cell-type-specific-analysis-of-transcriptome-changes-in-the-porcine-endometrium-on-day-12-of-pregnancy
#2
Shuqin Zeng, Jochen Bick, Susanne E Ulbrich, Stefan Bauersachs
BACKGROUND: Along with trophoblast elongation (Days 10 to 12), estradiol is secreted in increasing amounts for recognition of pregnancy. Endometrial secretions driven by ovarian progesterone and conceptus signals are essential for conceptus growth and development. Results of transcriptome analyses of whole endometrial tissue samples in the pig indicated the need for cell type-specific endometrial gene expression analysis for a better understanding of transcriptome changes associated with establishment of pregnancy...
June 14, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29849620/circulating-micrornas-as-biomarkers-of-gestational-diabetes-mellitus-updates-and-perspectives
#3
REVIEW
Elisa Guarino, Chiara Delli Poggi, Giuseppina Emanuela Grieco, Valeria Cenci, Elena Ceccarelli, Isabella Crisci, Guido Sebastiani, Francesco Dotta
Gestational diabetes mellitus (GDM) is defined as any degree of carbohydrate intolerance, with onset or first recognition during second or third trimester of gestation. It is estimated that approximately 7% of all pregnancies are complicated by GDM and that its prevalence is rising all over the world. Thus, the screening for abnormal glucose levels is generally recommended as a routine component of care for pregnant women. However, additional biomarkers are needed in order to predict the onset or accurately monitor the status of gestational diabetes...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29717059/fed-exosome-extracellular-vesicles-and-cell-cell-communication-in-metabolic-regulation
#4
REVIEW
Isabella Samuelson, Antonio J Vidal-Puig
Extracellular vesicles (EVs) have emerged as a novel messaging system of the organism, mediating cell-cell and interorgan communication. Through their content of proteins and nucleic acids, as well as membrane proteins and lipid species, EVs can interact with and modulate the function of their target cells. The regulation of whole-body metabolism requires cross-talk between key metabolic tissues including adipose tissue (AT), the liver and skeletal muscle. Furthermore, the regulation of nutrient/energy allocation during pregnancy requires co-ordinated communication between the foetus and metabolic organs of the mother...
May 15, 2018: Essays in Biochemistry
https://www.readbyqxmd.com/read/29626979/placental-exosomes-profile-in-maternal-and-fetal-circulation-in-intrauterine-growth-restriction-liquid-biopsies-to-monitoring-fetal-growth
#5
Jezid Miranda, Cristina Paules, Soumyalekshmi Nair, Andrew Lai, Carlos Palma, Katherin Scholz-Romero, Gregory E Rice, Eduard Gratacos, Fatima Crispi, Carlos Salomon
INTRODUCTION: Placenta-derived exosomes may represent an additional pathway by which the placenta communicates with the maternal system to induce maternal vascular adaptations to pregnancy and it may be affected during Fetal growth restriction (FGR). The objective of this study was to quantify the concentration of total and placenta-derived exosomes in maternal and fetal circulation in small fetuses classified as FGR or small for gestational age (SGA). METHODS: Prospective cohort study in singleton term gestations including 10 normally grown fetuses and 20 small fetuses, sub-classified into SGA and FGR accordingly to birth weight (BW) percentile and fetoplacental Doppler...
April 2018: Placenta
https://www.readbyqxmd.com/read/29616307/extracellular-vesicles-and-their-immunomodulatory-functions-in-pregnancy
#6
REVIEW
Soumyalekshmi Nair, Carlos Salomon
Extracellular vesicles (EVs) are membrane-bound vesicles released into the extracellular space by almost all types of cells. EVs can cross the physiological barriers, and a variety of biological fluids are enriched in them. EVs are a heterogeneous population of vesicles, including exosomes, microvesicles, and apoptotic bodies. The different subpopulations of vesicles can be differentiated by size and origin, in which exosomes (~100 nm and from endocytic origin) are the most studied so far. EVs have essential roles in cell-to-cell communication and are critical modulators of immune response under normal and pathological conditions...
April 3, 2018: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29611751/-the-pathogenetic-role-and-expression-profile-of-micrornas-in-preeclampsia
#7
Orsolya Biró, János Rigó
Preeclampsia is the leading cause of maternal and fetal morbidity and mortality that affects 3-8% of pregnancies worldwide. Its main symptoms include new onset of high blood pressure and proteinuria after 20 weeks of pregnancy. The cause of the disease is still debated. microRNAs are short, non-coding RNA molecules that play a pivotal part in the posttranscriptional regulation of eukaryotic genes. They are involved in fine-tuning of vital physiological processes such as cell cycle, proliferation, differentiation and cell death...
April 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29570394/maternal-and-umbilical-cord-serum-derived-exosomes-enhance-endothelial-cell-proliferation-and-migration
#8
Linyan Jia, Xinyao Zhou, Xiaojie Huang, Xianghong Xu, Yuanhui Jia, Yingting Wu, Julei Yao, Yanming Wu, Kai Wang
We investigated the role of exosomes derived from maternal (ME) and umbilical (UE) cord blood in the regulation of angiogenesis. We report here that both MEs and UEs significantly enhance HUVEC proliferation, migration, and tube formation. Importantly, ME-treated HUVECs (MEXs) displayed significantly increased migration, but not proliferation or tube formation, compared with UE-treated HUVECs (UEXs). We found that the expression of a subset of migration-related microRNAs (miRNAs), including miR-210-3p, miR-376c-3p, miR-151a-5p, miR-296-5p, miR-122-5p, and miR-550a-5p, among others, were significantly increased or decreased in UEs, and this altered expression was likely correlated with the differential regulation of HUVEC migration...
March 23, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29518183/cardioprotection-by-cardiac-progenitor-cell-secreted-exosomes-role-of-pregnancy-associated-plasma-protein-a
#9
Lucio Barile, Elisabetta Cervio, Vincenzo Lionetti, Giuseppina Milano, Alessandra Ciullo, Vanessa Biemmi, Sara Bolis, Claudia Altomare, Marco Matteucci, Dario Disilvestre, Tudor Emanuel Fertig, Tiziano Torre, Stefanos Demertzis, Pierluigi Mauri, Tiziano Moccetti, Giuseppe Vassalli
Aims: Cell therapy trials using cardiac-resident progenitor cells (CPCs) and bone marrow-derived mesenchymal stem/progenitor cells (BMCs) in patients after myocardial infarction have provided encouraging results. Exosomes, nanosized extracellular vesicles of endosomal origin, figure prominently in the bioactivities of these cells. However, a head-to-head comparison of exosomes from the two cell types has not been performed yet. Methods and Results: CPCs and BMCs were derived from cardiac atrial appendage specimens and sternal bone marrow, respectively, from patients (n=20; age, 69...
March 5, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29376493/placental-exosomes-during-gestation-liquid-biopsies-carrying-signals-for-the-regulation-of-human-parturition
#10
Carlos Salomon, Zarin Nuzhat, Christopher L Dixon, Ramkumar Menon
Parturition is defined as the action or process of giving birth to offspring. Normal term human parturition ensues following the maturation of fetal organ systems typically between 37 and 40 weeks of gestation. Our conventional understanding of how parturition initiation is signaled revolves around feto-maternal immune and endocrine changes occurring in the intrauterine cavity. These changes in turn correlate with the sequence of fetal growth and development. These important physiological changes also result in homeostatic imbalances which result in heightened inflammatory signaling...
January 25, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29357727/amniotic-fluid-hif1%C3%AE-and-exosomal-hif1%C3%AE-in-cervical-insufficiency-patients-with-physical-examination-indicated-cerclage
#11
Ji Eun Song, Seok Ju Park, Keun Young Lee, Wang Jae Lee
OBJECTIVE: Hypoxia inducible factor 1α (HIF1α) has been reported to activate inflammatory cascade. Recently, exosomes have been known to have pivotal roles in intercellular communication. The aim of this study was to compare the concentration of amniotic fluid (AF) HIF1α, exosomal HIF1α, and inflammatory cytokines such as interleukin 1α (IL1α), interleukin 1β (IL1β), interleukin 6 (IL6), and tumor necrosis factor α (TNFα) between physical examination-indicated cerclage (PEIC) and control group...
February 15, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29328396/placenta%C3%A2-associated-serum-exosomal-mir%C3%A2-155-derived-from-patients-with-preeclampsia-inhibits-enos-expression-in-human-umbilical-vein-endothelial-cells
#12
Li Shen, Yujing Li, Ruotian Li, Zhenyu Diao, Muyi Yany, Mengfei Wu, Haixiang Sun, Guijun Yan, Yali Hu
Preeclampsia (PE) is considered to be initiated by abnormal placentation in early pregnancy and results in systemic endothelial cell dysfunction in the second or third trimester. MicroRNAs (miRs) expressed in the human placenta can be secreted into maternal circulation via exosomes, which are secreted extracellular vesicles that serve important roles in intercellular communication. The present study hypothesized that upregulation of placenta‑associated serum exosomal miR‑155 from patients with PE may suppress endothelial nitric oxide synthase (eNOS) expression in endothelial cells...
March 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29277271/is-there-a-role-for-exosomes-in-foetoplacental-endothelial-dysfunction-in-gestational-diabetes-mellitus
#13
REVIEW
Tamara Sáez, Paul de Vos, Luis Sobrevia, Marijke M Faas
Gestational diabetes mellitus (GDM) is a disease of pregnancy associated with endothelial dysfunction in the foetoplacental vasculature. Foetoplacental endothelial dysfunction is characterized by changes in the l-arginine-adenosine signalling pathway and inflammation. The mechanisms involved in these alterations are suggested to be hyperglycaemia, hyperinsulinemia, and oxidative stress. These conditions increase the release of exosomes, nanovesicles that are generated from diverse cell types, including endothelial cells...
January 2018: Placenta
https://www.readbyqxmd.com/read/29222068/foetoplacental-communication-via-extracellular-vesicles-in-normal-pregnancy-and-preeclampsia
#14
REVIEW
Delia I Chiarello, Rocío Salsoso, Fernando Toledo, Alfonso Mate, Carmen M Vázquez, Luis Sobrevia
Intercellular communication is a critical process in biological mechanisms. During pregnancy foetoplacental tissues release a heterogeneous group of extracellular vesicles (EVs) that include exosomes, microvesicles, apoptotic bodies, and syncytial nuclear aggregates. These vesicles contain a complex cargo (proteins, DNA, mRNA transcripts, microRNAs, noncoding RNA, lipids, and other molecules) that actively participate in the maternal-foetal communication by modulating different processes during gestation for a successful foetal development...
April 2018: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29197000/proteomics-method-to-identification-of-protein-profiles-in-exosomes
#15
Andrew Lai, Vyjayanthi Kinhal, Zarin Nuzhat, Ramkumar Menon, Gregory E Rice, Carlos Salomon
Exosomes are membrane-bound nanovesicles that transport molecular signals (e.g., proteins) between cells and are released from a wide range of cells, including the human placenta. Interestingly, the levels of exosomes present in maternal circulation are higher in preeclamptic pregnancies and their protein content profile change in response to the microenvironment milieu. Through the discovery of candidate biomarkers, mass spectrometry (MS)-based proteomics may provide a better understanding of the pathophysiology underlying pregnancy-associated disorders...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29196999/optimized-specific-isolation-of-placenta-derived-exosomes-from-maternal-circulation
#16
Andrew Lai, Omar Elfeky, Gregory E Rice, Carlos Salomon
Exosomes are small (~100 nm) vesicles that carry a wide range of molecules including proteins, RNAs, and DNA. Exosomes are secreted from a wide range of cells including placental cells. Interestingly, exosomes secreted from placental cells have been identified in maternal circulation as early as in 6 weeks of gestation, and their concentration increases with the gestational age. While there is growing interest in elucidating the role of exosomes during normal and complicated pregnancies (such as preeclampsia), progress in the field has been delayed because of the inability to isolate placental exosomes from maternal circulation...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29196997/methods-to-enrich-exosomes-from-conditioned-media-and-biological-fluids
#17
Shayna Sharma, Katherin Scholz-Romero, Gregory E Rice, Carlos Salomon
Exosomes are nano-vesicles which can transport a range of molecules including but not limited to proteins and miRNA. This ability of exosomes renders them useful in cellular communication often resulting in biological changes. They have several functions in facilitating normal biological processes such as immune responses and an involvement in pregnancy. However, they have also been linked to pathological conditions including cancer and pregnancy complications such as preeclampsia. An understanding for the role of exosomes in preeclampsia is based on the ability to purify and characterize exosomes...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29196267/intrauterine-exosomes-are-required-for-bovine-conceptus-implantation
#18
Kazuya Kusama, Keigo Nakamura, Rulan Bai, Kentaro Nagaoka, Toshihiro Sakurai, Kazuhiko Imakawa
Exosomes, extracellular vesicles, are present in uterine flushing fluids (UFs), which are involved in conceptus-endometrial interactions during peri-implantation periods. Despite several studies on intrauterine exosomes conducted, the roles conceptus and endometrial exosomes play during peri-implantation periods have not been well characterized. To investigate the effect of bovine intrauterine exosomes on conceptus implantation, exosomes isolated from bovine UFs during peri-implantation periods were subjected to global protein analysis...
January 1, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29193463/placental-exosomes-a-proxy-to-understand-pregnancy-complications
#19
Jin Jin, Ramkumar Menon
Exosomes (30- to 150-nm particles), originating from multivesicular bodies by the invagination of the endosomal membrane, are communication channels between cells. Exosomes are released by various cell types and cargo proteins, lipids, and nucleic acids reflecting the physiologic status of their cells of origin and cause functional changes in recipient cells, which are likely dependent on their quantity and/or cargo contents. Recently, placental exosomes, produced by various placental cell types, have been isolated from maternal blood using the placental protein-specific marker, placental alkaline phosphatase (PLAP)...
May 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29184401/placenta-derived-exosomes-potential-biomarkers-of-preeclampsia
#20
REVIEW
Preenan Pillay, Kogi Moodley, Jagidesa Moodley, Irene Mackraj
Preeclampsia remains a leading cause of maternal and fetal mortality, due to ineffective treatment and diagnostic strategies, compounded by the lack of clarity on the etiology of the disorder. Although several clinical and biological markers of preeclampsia have been evaluated, they have proven to be ineffective in providing a definitive diagnosis during the various stages of the disorder. Exosomes have emerged as ideal biomarkers of pathological states, such as cancer, and have more recently gained interest in pregnancy-related complications, due to their role in cellular communication in normal and complicated pregnancies...
2017: International Journal of Nanomedicine
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