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Fetal transcriptome

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https://www.readbyqxmd.com/read/28928204/bone-morphogenetic-protein-and-retinoic-acid-synergistically-specify-female-germ-cell-fate-in-mice
#1
Hidetaka Miyauchi, Hiroshi Ohta, So Nagaoka, Fumio Nakaki, Kotaro Sasaki, Katsuhiko Hayashi, Yukihiro Yabuta, Tomonori Nakamura, Takuya Yamamoto, Mitinori Saitou
The mechanism for sex determination in mammalian germ cells remains unclear. Here, we reconstitute the female sex determination in mouse germ cells in vitro under a defined condition without the use of gonadal somatic cells. We show that retinoic acid (RA) and its key effector, STRA8, are not sufficient to induce the female germ-cell fate. In contrast, bone morphogenetic protein (BMP) and RA synergistically induce primordial germ cells (PGCs)/PGC-like cells (PGCLCs) derived from embryonic stem cells (ESCs) into fetal primary oocytes...
September 19, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28918081/developmental-alcohol-exposure-impairs-synaptic-plasticity-without-overtly-altering-microglial-function-in-mouse-visual-cortex
#2
Elissa L Wong, Nina M Lutz, Victoria A Hogan, Cassandra E Lamantia, Helene R McMurray, Jason R Myers, John M Ashton, Ania K Majewska
Fetal alcohol spectrum disorder (FASD), caused by gestational ethanol (EtOH) exposure, is one of the most common causes of non-heritable and life-long mental disability worldwide, with no standard treatment or therapy available. While EtOH exposure can alter the function of both neurons and glia, it is still unclear how EtOH influences brain development to cause deficits in sensory and cognitive processing later in life. Microglia play an important role in shaping synaptic function and plasticity during neural circuit development and have been shown to mount an acute immunological response to EtOH exposure in certain brain regions...
September 13, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28879060/onset-of-human-preterm-and-term-birth-is-related-to-unique-inflammatory-transcriptome-profiles-at-the-maternal-fetal-interface
#3
Radek Bukowski, Yoel Sadovsky, Hani Goodarzi, Heping Zhang, Joseph R Biggio, Michael Varner, Samuel Parry, Feifei Xiao, Sean M Esplin, William Andrews, George R Saade, John V Ilekis, Uma M Reddy, Donald A Baldwin
BACKGROUND: Preterm birth is a main determinant of neonatal mortality and morbidity and a major contributor to the overall mortality and burden of disease. However, research of the preterm birth is hindered by the imprecise definition of the clinical phenotype and complexity of the molecular phenotype due to multiple pregnancy tissue types and molecular processes that may contribute to the preterm birth. Here we comprehensively evaluate the mRNA transcriptome that characterizes preterm and term labor in tissues comprising the pregnancy using precisely phenotyped samples...
2017: PeerJ
https://www.readbyqxmd.com/read/28878260/%C3%AE-7-nicotinic-acetylcholine-receptor-signaling-modulates-the-inflammatory-phenotype-of-fetal-brain-microglia-first-evidence-of-interference-by-iron-homeostasis
#4
M Cortes, M Cao, H L Liu, C S Moore, L D Durosier, P Burns, G Fecteau, A Desrochers, L B Barreiro, J P Antel, M G Frasch
Neuroinflammation in utero may result in life-long neurological disabilities. Microglia play a pivotal role, but the mechanisms are poorly understood. No early postnatal treatment strategies exist to enhance neuroprotective potential of microglia. We hypothesized that agonism on α7 nicotinic acetylcholine receptor (α7nAChR) in fetal microglia will augment their neuroprotective transcriptome profile, while the antagonistic stimulation of α7nAChR will achieve the opposite. Using an in vivo - in vitro model of developmental programming of neuroinflammation induced by lipopolysaccharide (LPS), we validated this hypothesis in primary fetal sheep microglia cultures re-exposed to LPS in presence of a selective α7nAChR agonist or antagonist...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28864013/the-transformative-potential-of-an-integrative-approach-to-pregnancy
#5
Haley R Eidem, Kriston L McGary, John A Capra, Patrick Abbot, Antonis Rokas
BACKGROUND: Complex traits typically involve diverse biological pathways and are shaped by numerous genetic and environmental factors. Pregnancy-associated traits and pathologies are further complicated by extensive communication across multiple tissues in two individuals, interactions between two genomes-maternal and fetal-that obscure causal variants and lead to genetic conflict, and rapid evolution of pregnancy-associated traits across mammals and in the human lineage. Given the multi-faceted complexity of human pregnancy, integrative approaches that synthesize diverse data types and analyses harbor tremendous promise to identify the genetic architecture and environmental influences underlying pregnancy-associated traits and pathologies...
September 2017: Placenta
https://www.readbyqxmd.com/read/28854703/expression-quantitative-trait-loci-eqtls-in-human-placentas-suggest-developmental-origins-of-complex-diseases
#6
Shouneng Peng, Maya A Deyssenroth, Antonio F Di Narzo, Luca Lambertini, Carmen J Marsit, Jia Chen, Ke Hao
Epidemiologic studies support that at least part of the risk of chronic diseases in childhood and even adulthood may have an in utero origin, and the placenta is a key organ that plays a pivotal role in fetal growth and development. The transcriptomes of 159 human placenta tissues were profiled by genome-wide RNA sequencing (Illumina High-Seq 2500), and linked to fetal genotypes assessed by a high density single nucleotide polymorphism (SNP) genotyping array (Illumina MegaEx). Expression quantitative trait loci (eQTLs) across all annotated transcripts were mapped and examined for enrichment for disease susceptibility loci annotated in the genome-wide association studies (GWAS) catalog...
September 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28837677/characterization-of-lincrna-expression-in-the-human-retinal-pigment-epithelium-and-differentiated-induced-pluripotent-stem-cells
#7
Elizabeth D Au, Rosario Fernandez-Godino, Tadeusz J Kaczynksi, Maria E Sousa, Michael H Farkas
Long intervening non-coding RNAs (lincRNAs) are increasingly being implicated as important factors in many aspects of cellular development, function, and disease, but remain poorly understood. In this study, we examine the human retinal pigment epithelium (RPE) lincRNA transcriptome using RNA-Seq data generated from human fetal RPE (fRPE), RPE derived from human induced pluripotent stem cells (iPS-RPE), and undifferentiated iPS (iPS). In addition, we determine the suitability of iPS-RPE, from a transcriptome standpoint, as a model for use in future studies of lincRNA structure and function...
2017: PloS One
https://www.readbyqxmd.com/read/28830992/integrative-single-cell-and-cell-free-plasma-rna-transcriptomics-elucidates-placental-cellular-dynamics
#8
Jason C H Tsang, Joaquim S L Vong, Lu Ji, Liona C Y Poon, Peiyong Jiang, Kathy O Lui, Yun-Bi Ni, Ka Fai To, Yvonne K Y Cheng, Rossa W K Chiu, Yuk Ming Dennis Lo
The human placenta is a dynamic and heterogeneous organ critical in the establishment of the fetomaternal interface and the maintenance of gestational well-being. It is also the major source of cell-free fetal nucleic acids in the maternal circulation. Placental dysfunction contributes to significant complications, such as preeclampsia, a potentially lethal hypertensive disorder during pregnancy. Previous studies have identified significant changes in the expression profiles of preeclamptic placentas using whole-tissue analysis...
August 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28830381/comparing-the-intestinal-transcriptome-of-meishan-and-large-white-piglets-during-late-fetal-development-reveals-genes-involved-in-glucose-and-lipid-metabolism-and-immunity-as-valuable-clues-of-intestinal-maturity
#9
Ying Yao, Valentin Voillet, Maeva Jegou, Magali SanCristobal, Samir Dou, Véronique Romé, Yannick Lippi, Yvon Billon, Marie-Christine Père, Gaëlle Boudry, Laure Gress, Nathalie Iannucelli, Pierre Mormède, Hélène Quesnel, Laurianne Canario, Laurence Liaubet, Isabelle Le Huërou-Luron
BACKGROUND: Maturity of intestinal functions is critical for neonatal health and survival, but comprehensive description of mechanisms underlying intestinal maturation that occur during late gestation still remain poorly characterized. The aim of this study was to investigate biological processes specifically involved in intestinal maturation by comparing fetal jejunal transcriptomes of two representative porcine breeds (Large White, LW; Meishan, MS) with contrasting neonatal vitality and maturity, at two key time points during late gestation (gestational days 90 and 110)...
August 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28826478/extensive-alternative-splicing-transitions-during-postnatal-skeletal-muscle-development-are-required-for-calcium-handling-functions
#10
Amy E Brinegar, Zheng Xia, James Anthony Loehr, Wei Li, George Gerald Rodney, Thomas A Cooper
Postnatal development of skeletal muscle is a highly dynamic period of tissue remodeling. Here, we used RNA-seq to identify transcriptome changes from late embryonic to adult mouse muscle and demonstrate that alternative splicing developmental transitions impact muscle physiology. The first 2 weeks after birth are particularly dynamic for differential gene expression and alternative splicing transitions, and calcium-handling functions are significantly enriched among genes that undergo alternative splicing...
August 11, 2017: ELife
https://www.readbyqxmd.com/read/28813466/comprehensive-comparison-of-neonate-and-adult-human-platelet-transcriptomes
#11
Eva Caparrós-Pérez, Raúl Teruel-Montoya, Mª José López-Andreo, Mª Carmen Llanos, José Rivera, Verónica Palma-Barqueros, Jose E Blanco, Vicente Vicente, Constantino Martínez, Francisca Ferrer-Marín
Understanding the underlying mechanisms of the well-substantiated platelet hyporeactivity in neonates is of interest given their implications for the clinical management of newborns, a population at higher bleeding risk than adults (especially sick and preterm infants), as well as for gaining insight into the regulatory mechanisms of platelet biology. Transcriptome analysis is useful in identifying mRNA signatures affecting platelet function. However, human fetal/neonatal platelet transcriptome analysis has never before been reported...
2017: PloS One
https://www.readbyqxmd.com/read/28783113/-omics-in-human-colostrum-and-mature-milk-looking-to-old-data-with-new-eyes
#12
REVIEW
Flaminia Bardanzellu, Vassilios Fanos, Alessandra Reali
Human Milk (HM) is the best source for newborn nutrition until at least six months; it exerts anti-inflammatory and anti-infective functions, promotes immune system formation and supports organ development. Breastfeeding could also protect from obesity, diabetes and cardiovascular disease. Furthermore, human colostrum (HC) presents a peculiar role in newborn support as a protective effect against allergic and chronic diseases, in addition to long-term metabolic benefits. In this review, we discuss the recent literature regarding "omics" technologies and growth factors (GF) in HC and the effects of pasteurization on its composition...
August 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28757165/an-efficient-platform-for-astrocyte-differentiation-from-human-induced-pluripotent-stem-cells
#13
Julia Tcw, Minghui Wang, Anna A Pimenova, Kathryn R Bowles, Brigham J Hartley, Emre Lacin, Saima I Machlovi, Rawan Abdelaal, Celeste M Karch, Hemali Phatnani, Paul A Slesinger, Bin Zhang, Alison M Goate, Kristen J Brennand
Growing evidence implicates the importance of glia, particularly astrocytes, in neurological and psychiatric diseases. Here, we describe a rapid and robust method for the differentiation of highly pure populations of replicative astrocytes from human induced pluripotent stem cells (hiPSCs), via a neural progenitor cell (NPC) intermediate. We evaluated this protocol across 42 NPC lines (derived from 30 individuals). Transcriptomic analysis demonstrated that hiPSC-astrocytes from four individuals are highly similar to primary human fetal astrocytes and characteristic of a non-reactive state...
August 8, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28750298/global-gene-expression-changes-of-amniotic-fluid-cell-free-rna-according-to-fetal-development
#14
Ji Hyon Jang, Yong Wook Jung, Sung Han Shim, Yun Jeong Sin, Kyoung Jin Lee, Sung Shin Shim, Eun Hee Ahn, Dong Hyun Cha
OBJECTIVE: This study aimed to evaluate the effect of in utero fetal development on the cell-free transcriptome of amniotic fluid by analyzing global gene expression in the amniotic fluid supernatant obtained at different gestational ages from euploid fetuses STUDY DESIGN: Thirteen amniotic fluid samples were obtained from five individuals at 28 gestational weeks and eight individuals at full term pregnancy. Transcriptome data previously analyzed by our group from 14 euploid mid-trimester amniotic fluid samples were used for comparative analysis...
July 15, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28749819/engraftment-and-repopulation-potential-of-late-gestation-fetal-rat-hepatocytes
#15
Joan M Boylan, Heather Francois-Vaughan, Philip A Gruppuso, Jennifer A Sanders
BACKGROUND: The limited availability of donor organs has led to a search for alternatives to liver transplantation to restore liver function and bridge patients to transplantation. We have shown that the proliferation of late gestation (embryonic day 19) fetal rat hepatocytes is mitogen-independent and that mechanisms regulating mRNA translation, cell cycle progression, and gene expression differ from those of adult rat hepatocytes. In the present study, we investigated whether E19 fetal hepatocytes can engraft and repopulate an injured adult liver...
October 2017: Transplantation
https://www.readbyqxmd.com/read/28747528/embryo-implantation-evolved-from-an-ancestral-inflammatory-attachment-reaction
#16
Oliver W Griffith, Arun R Chavan, Stella Protopapas, Jamie Maziarz, Roberto Romero, Gunter P Wagner
The molecular changes that support implantation in eutherian mammals are necessary to establish pregnancy. In marsupials, pregnancy is relatively short, and although a placenta does form, it is present for only a few days before parturition. However, morphological changes in the uterus of marsupials at term mimic those that occur during implantation in humans and mice. We investigated the molecular similarity between term pregnancy in the marsupials and implantation in eutherian mammals using the gray short-tailed opossum (Monodelphis domestica) as a model...
August 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28740077/footprint-free-human-fetal-foreskin-derived-ipscs-a-tool-for-modeling-hepatogenesis-associated-gene-regulatory-networks
#17
Peggy Matz, Wasco Wruck, Beatrix Fauler, Diran Herebian, Thorsten Mielke, James Adjaye
Induced pluripotent stem cells (iPSCs) are similar to embryonic stem cells and can be generated from somatic cells. We have generated episomal plasmid-based and integration-free iPSCs (E-iPSCs) from human fetal foreskin fibroblast cells (HFF1). We used an E-iPSC-line to model hepatogenesis in vitro. The HLCs were characterized biochemically, i.e. glycogen storage, ICG uptake and release, UREA and bile acid production, as well as CYP3A4 activity. Ultra-structure analysis by electron microscopy revealed the presence of lipid and glycogen storage, tight junctions and bile canaliculi- all typical features of hepatocytes...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28735706/amniotic-fluid-transcriptomics-reflects-novel-disease-mechanisms-in-fetuses-with-myelomeningocele
#18
Tomo Tarui, Aimee Kim, Alan Flake, Lauren McClain, John D Stratigis, Inbar Fried, Rebecca Newman, Donna K Slonim, Diana W Bianchi
BACKGROUND: Cell-free RNA in amniotic fluid supernatant reflects developmental changes in gene expression in the living fetus, which includes genes that are specific to the central nervous system. Although it has been previously shown that central nervous system-specific transcripts are present in amniotic fluid supernatant, it is not known whether changes in the amniotic fluid supernatant transcriptome reflect the specific pathophysiologic condition of fetal central nervous system disorders...
July 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28728371/expression-of-fox-related-genes-in-the-skin-follicles-of-inner-mongolia-cashmere-goat
#19
Wenjing Han, Xiaoyan Li, Lele Wang, Honghao Wang, Kun Yang, Zhixin Wang, Ruijun Wang, Rui Su, Zhihong Liu, Yanhong Zhao, Yanjun Zhang, Jinquan Li
Objective: The aim of this study was to investigate the expression of genes in cashmere goats at different periods of their fetal development. Methods: Bioinformatics analysis was used to evaluate data obtained by transcriptome sequencing of fetus skin samples collected from Inner Mongolia cashmere goats on days 45, 55, and 65 of fetal age. Results: We found that FoxN1, FoxE1, and FoxI3 genes of the Fox gene family were probably involved in the growth and development of the follicle and the formation of hair, which is consistent with previous findings...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28724449/novel-promoters-and-coding-first-exons-in-dlg2-linked-to-developmental-disorders-and-intellectual-disability
#20
Claudio Reggiani, Sandra Coppens, Tayeb Sekhara, Ivan Dimov, Bruno Pichon, Nicolas Lufin, Marie-Claude Addor, Elga Fabia Belligni, Maria Cristina Digilio, Flavio Faletra, Giovanni Battista Ferrero, Marion Gerard, Bertrand Isidor, Shelagh Joss, Florence Niel-Bütschi, Maria Dolores Perrone, Florence Petit, Alessandra Renieri, Serge Romana, Alexandra Topa, Joris Robert Vermeesch, Tom Lenaerts, Georges Casimir, Marc Abramowicz, Gianluca Bontempi, Catheline Vilain, Nicolas Deconinck, Guillaume Smits
BACKGROUND: Tissue-specific integrative omics has the potential to reveal new genic elements important for developmental disorders. METHODS: Two pediatric patients with global developmental delay and intellectual disability phenotype underwent array-CGH genetic testing, both showing a partial deletion of the DLG2 gene. From independent human and murine omics datasets, we combined copy number variations, histone modifications, developmental tissue-specific regulation, and protein data to explore the molecular mechanism at play...
July 19, 2017: Genome Medicine
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