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Fetal transcriptome

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https://www.readbyqxmd.com/read/28219950/nutritional-modulation-of-mouse-and-human-liver-bud-growth-through-a-branched-amino-acid-metabolism
#1
Hiroyuki Koike, Ran-Ran Zhang, Yasuharu Ueno, Keisuke Sekine, Yun-Wen Zheng, Takanori Takebe, Hideki Taniguchi
Liver bud progenitors experience a transient amplification during early organ growth phase, yet the responsible mechanism was not fully understood. Collective evidence highlighted the specific requirements in stem cell metabolism for expanding organ progenitors during organogenesis and regeneration. Here, transcriptome analyses showed progenitors of mouse and human liver bud growth stage specifically expressed branched chain aminotransferase1 gene, a known breakdown enzyme of branched-chain amino acid (BCAA) for energy generation...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28216147/differential-responses-of-human-fetal-brain-neural-stem-cells-to-zika-virus-infection
#2
Erica L McGrath, Shannan L Rossi, Junling Gao, Steven G Widen, Auston C Grant, Tiffany J Dunn, Sasha R Azar, Christopher M Roundy, Ying Xiong, Deborah J Prusak, Bradford D Loucas, Thomas G Wood, Yongjia Yu, Ildefonso Fernández-Salas, Scott C Weaver, Nikos Vasilakis, Ping Wu
Zika virus (ZIKV) infection causes microcephaly in a subset of infants born to infected pregnant mothers. It is unknown whether human individual differences contribute to differential susceptibility of ZIKV-related neuropathology. Here, we use an Asian-lineage ZIKV strain, isolated from the 2015 Mexican outbreak (Mex1-7), to infect primary human neural stem cells (hNSCs) originally derived from three individual fetal brains. All three strains of hNSCs exhibited similar rates of Mex1-7 infection and reduced proliferation...
February 9, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28209491/the-preterm-cervix-reveals-a-transcriptomic-signature-in-the-presence-of-premature-pre-labor-rupture-of-membranes
#3
Sofia Makieva, Aurelija Dubicke, Sara F Rinaldi, Emma Fransson, Gunvor Ekman-Ordeberg, Jane E Norman
BACKGROUND: Premature Pre-labor Rupture of Fetal Membranes (PPROM) accounts for 30% of all premature births and is associated with detrimental long-term infant outcomes. Premature cervical remodeling, facilitated by matrix metalloproteinases (MMPs), may trigger rupture at the zone of the fetal membranes overlying the cervix. The similarities and differences underlying cervical remodeling in PPROM and spontaneous preterm labor with intact membranes (PTL) are unexplored. OBJECTIVES: We aimed a) to perform the first transcriptomic assessment of the preterm human cervix to identify differences between PPROM and PTL and b) to compare the enzymatic activities of MMP-2 and 9 between PPROM and PTL...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28208659/developmental-origins-of-chronic-kidney-disease-should-we-focus-on-early-life
#4
REVIEW
You-Lin Tain, Chien-Ning Hsu
Chronic kidney disease (CKD) is becoming a global burden, despite recent advances in management. CKD can begin in early life by so-called "developmental programming" or "developmental origins of health and disease" (DOHaD). Early-life insults cause structural and functional changes in the developing kidney, which is called renal programming. Epidemiological and experimental evidence supports the proposition that early-life adverse events lead to renal programming and make subjects vulnerable to developing CKD and its comorbidities in later life...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28196369/leveraging-online-resources-to-prioritize-candidate-genes-for-functional-analyses-using-the-fetal-testis-as-a-test-case
#5
Kathryn S McClelland, Humphrey H-C Yao
With each new microarray or RNA-seq experiment, massive quantities of transcriptomic information are generated with the purpose to produce a list of candidate genes for functional analyses. Yet an effective strategy remains elusive to prioritize the genes on these candidate lists. In this review, we outline a prioritizing strategy by taking a step back from the bench and leveraging the rich range of public databases. This in silico approach provides an economical, less biased, and more effective solution. We discuss the publicly available online resources that can be used to answer a range of questions about a gene...
February 15, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28191465/pedf-is-associated-with-the-termination-of-chondrocyte-phenotype-and-catabolism-of-cartilage-tissue
#6
P Klinger, S Lukassen, F Ferrazzi, A B Ekici, T Hotfiel, B Swoboda, T Aigner, K Gelse
Objective. To investigate the expression and target genes of pigment epithelium-derived factor (PEDF) in cartilage and chondrocytes, respectively. Methods. We analyzed the expression pattern of PEDF in different human cartilaginous tissues including articular cartilage, osteophytic cartilage, and fetal epiphyseal and growth plate cartilage, by immunohistochemistry and quantitative real-time (qRT) PCR. Transcriptome analysis after stimulation of human articular chondrocytes with rhPEDF was performed by RNA sequencing (RNA-Seq) and confirmed by qRT-PCR...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28174237/single-cell-transcriptomics-of-the-human-placenta-inferring-the-cell-communication-network-of-the-maternal-fetal-interface
#7
Mihaela Pavličev, Günter P Wagner, Arun Rajendra Chavan, Kathryn Owens, Jamie Maziarz, Caitlin Dunn-Fletcher, Suhas G Kallapur, Louis Muglia, Helen Jones
Organismal function is, to a great extent, determined by interactions among their fundamental building blocks, the cells. In this work, we studied the cell-cell interactome of fetal placental trophoblast cells and maternal endometrial stromal cells, using single-cell transcriptomics. The placental interface mediates the interaction between two semiallogenic individuals, the mother and the fetus, and is thus the epitome of cell interactions. To study these, we inferred the cell-cell interactome by assessing the gene expression of receptor-ligand pairs across cell types...
February 7, 2017: Genome Research
https://www.readbyqxmd.com/read/28148530/usp40-gene-knockdown-disrupts-glomerular-permeability-in-zebrafish
#8
Hisashi Takagi, Yukino Nishibori, Kan Katayama, Tomohisa Katada, Shohei Takahashi, Zentaro Kiuchi, Shin-Ichiro Takahashi, Hiroyasu Kamei, Hayato Kawakami, Yoshihiro Akimoto, Akihiko Kudo, Katsuhiko Asanuma, Hiromu Takematsu, Kunimasa Yan
Unbiased transcriptome profiling and functional genomics approaches have identified ubiquitin specific protease 40 (USP40) as a highly specific glomerular transcript. This gene product remains uncharacterized, and its biological function is completely unknown. Here, we showed that mouse and rat glomeruli exhibit specific expression of the USP40 protein, which migrated at 150 kDa and was exclusively localized in the podocyte cytoplasm of the adult kidney. Double-labeling immunofluorescence staining and confocal microscopy analysis of fetal and neonate kidney samples revealed that USP40 was also expressed in the vasculature, including in glomerular endothelial cells at the premature stage...
February 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28131474/transcriptome-sequencing-reveals-prenatal-pfos-exposure-on-liver-disorders
#9
Keng Po Lai, Jing Woei Li, Angela Cheung, Rong Li, Md Baki Billah, Ting Fung Chan, Chris Kong Chu Wong
Perfluorooctane sulfonate (PFOS), a hepatic toxicant and a potential hepatocarcinogen, is commonly used in industrial products. The widespread contamination of PFOS in human maternal and cord blood has raised concerns about its potential risks to the fetus. It is believed that adverse environmental exposure during the critical period of embryo development can have long-lasting consequences in later life. In this report, we used transcriptome sequencing, followed by bioinformatics analysis, to elucidate the potential hepatotoxic and hepatocarcinogenic effects of prenatal PFOS exposure in the fetus...
January 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28120744/porcine-neural-progenitor-cells-derived-from-tissue-at-different-gestational-ages-can-be-distinguished-by-global-transcriptome
#10
Jing Yang, Steven Menges, Ping Gu, Ronald Tongbai, Melissa Samuel, Randall S Prather, Henry Klassen
The impact of gestational age on mammalian neural progenitor cells is potentially important for both an understanding of neural development and the selection of donor cells for novel cellbased treatment strategies. In terms of the latter, it can be problematic to rely entirely on rodent models in which the gestational period is significantly shorter and the brain much smaller than is the case in humans. Here we analyzed pig brain progenitor cells (pBPCs) harvested at two different gestational ages (E45 and E60) using gene expression profiles, obtained by microarray analysis and qPCR, across time in culture...
January 24, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28118667/restoration-of-mesenchymal-rpe-by-transcription-factor-mediated-reprogramming
#11
Ying-Hsuan Shih, Monte J Radeke, Carolyn M Radeke, Pete J Coffey
Purpose: Transforming growth factor β-mediated epithelial-to-mesenchymal transition (EMT) is a major component of the wound healing response and a negative determinant of retinal pigment epithelium (RPE) differentiation. We have shown previously that inhibition of TGFβ signaling restored the capacity of mesenchymal RPE to differentiate; however, the potential lessens with extensive passaging. We investigated TGFβ-independent mechanisms that regulate RPE differentiation following repetitive passaging...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28117838/early-onset-of-inflammation-during-ontogeny-of-bipolar-disorder-the-nlrp2-inflammasome-gene-distinctly-differentiates-between-patients-and-healthy-controls-in-the-transition-between-ips-cell-and-neural-stem-cell-stages
#12
D Vizlin-Hodzic, Q Zhai, S Illes, K Södersten, K Truvé, T Z Parris, P K Sobhan, S Salmela, S T Kosalai, C Kanduri, J Strandberg, H Seth, T O Bontell, E Hanse, H Ågren, K Funa
Neuro-inflammation and neuronal communication are considered as mis-regulated processes in the aetiology and pathology of bipolar disorder (BD). Which and when specific signal pathways become abnormal during the ontogeny of bipolar disorder patients is unknown. To address this question, we applied induced pluripotent stem cell (iPSC) technology followed by cortical neural differentiation on adipocyte-derived cells from BD type I patients (with psychotic episodes in psychiatric history) and healthy volunteers (controls)...
January 24, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28060419/a-molecular-roadmap-of-definitive-erythropoiesis-from-human-induced-pluripotent-stem-cells
#13
Muhammad A Razaq, Stephen Taylor, David J Roberts, Lee Carpenter
Human induced pluripotent stem cells (hiPSCs) are being considered for use in understanding haematopoietic disorders and as a potential source of in vitro manufactured red cells. Here, we show that hiPSCs are able to recapitulate various stages of developmental erythropoiesis. We show that primitive erythroblasts arise first, express CD31(+) with CD235a(+) , embryonic globins and red cell markers, but fail to express the hallmark red cell transcripts of adult erythropoiesis. When hiPSC-derived CD45(+) CD235a(-) haematopoietic progenitors are isolated on day 12 and further differentiated on OP9 stroma, they selectively express CD36(+) and CD235a(+) , adult erythroid transcripts for transcription factors (e...
January 6, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28046103/transcriptome-profiling-identifies-ribosome-biogenesis-as-a-target-of-alcohol-teratogenicity-and-vulnerability-during-early-embryogenesis
#14
Mark E Berres, Ana Garic, George R Flentke, Susan M Smith
Fetal alcohol spectrum disorder (FASD) is a leading cause of neurodevelopmental disability. Individuals with FASD may exhibit a characteristic facial appearance that has diagnostic utility. The mechanism by which alcohol disrupts craniofacial development is incompletely understood, as are the genetic factors that can modify individual alcohol vulnerability. Using an established avian model, we characterized the cranial transcriptome in response to alcohol to inform the mechanism underlying these cells' vulnerability...
2017: PloS One
https://www.readbyqxmd.com/read/28031337/immune-modifications-in-fetal-membranes-overlying-the-cervix-precede-parturition-in-humans
#15
Louis Marcellin, Thomas Schmitz, Meriem Messaoudene, Driss Chader, Christophe Parizot, Sébastien Jacques, Jérémy Delaire, Jean Gogusev, Alain Schmitt, Corinne Lesaffre, Michelle Breuiller-Fouché, Anne Caignard, Daniel Vaiman, François Goffinet, Dominique Cabrol, Guy Gorochov, Céline Méhats
In humans, parturition is currently viewed as an intrauterine outbreak of inflammation, accompanied by a massive release of proinflammatory cytokines at the maternal-fetal interface that comprises the maternal decidua, placenta, and fetal membranes. At term, fetal membranes overlying the cervix, the future site of rupture, show altered morphology and are termed the zone of altered morphology (ZAM). These alterations occur in normal fetal membranes during late pregnancy, in preparation for labor. In this study, transcriptome, flow cytometry, electron microscopy, and immunohistochemistry analyses collectively highlight a local shift in gene expression and lymphocyte activation in the ZAM...
December 28, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28011779/cerebroviz-an-r-package-for-anatomical-visu-alization-of-spatiotemporal-brain-data
#16
Ethan Bahl, Tanner Koomar, Jacob J Michaelson
: Spatiotemporal transcriptomic profiling has provided valuable insight into the patterning of gene expression throughout the human brain from early fetal development to adulthood. When combined with prior knowledge of a disease's age at onset and region-specificity, these expression profiles have provided the necessary context to both strengthen putative gene-disease associations and infer new associations. While a wealth of spatiotemporal expression data exists, there are currently no tools available to visualize this data within the anatomical context of the brain, thus limiting the intuitive interpretation of many such findings...
December 22, 2016: Bioinformatics
https://www.readbyqxmd.com/read/28009303/cerebral-organoids-recapitulate-epigenomic-signatures-of-the-human-fetal-brain
#17
Chongyuan Luo, Madeline A Lancaster, Rosa Castanon, Joseph R Nery, Juergen A Knoblich, Joseph R Ecker
Organoids derived from human pluripotent stem cells recapitulate the early three-dimensional organization of the human brain, but whether they establish the epigenomic and transcriptional programs essential for brain development is unknown. We compared epigenomic and regulatory features in cerebral organoids and human fetal brain, using genome-wide, base resolution DNA methylome and transcriptome sequencing. Transcriptomic dynamics in organoids faithfully modeled gene expression trajectories in early-to-mid human fetal brains...
December 20, 2016: Cell Reports
https://www.readbyqxmd.com/read/27974560/zika-virus-infects-early-and-midgestation-human-maternal-decidual-tissues-inducing-distinct-innate-tissue-responses-in-the-maternal-fetal-interface
#18
Yiska Weisblum, Esther Oiknine-Djian, Olesya M Vorontsov, Ronit Haimov-Kochman, Zichria Zakay-Rones, Karen Meir, David Shveiky, Sharona Elgavish, Yuval Nevo, Moshe Roseman, Michal Bronstein, David Stockheim, Ido From, Iris Eisenberg, Aya A Lewkowicz, Simcha Yagel, Amos Panet, Dana G Wolf
: Zika virus (ZIKV) has emerged as a cause of congenital brain anomalies and a range of placenta-related abnormalities, highlighting the need to unveil the modes of maternal-fetal transmission. The most likely route of vertical ZIKV transmission is via the placenta. The earliest events of ZIKV transmission in the maternal decidua, representing the maternal uterine aspect of the chimeric placenta, have remained unexplored. Here, we show that ZIKV replicates in first-trimester human maternal-decidual tissues grown ex vivo as three-dimensional (3D) organ cultures...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/27960177/alterations-in-fetal-leydig-cell-gene-expression-during-fetal-and-adult-development
#19
Kanako Miyabayashi, Yuichi Shima, Miki Inoue, Tetsuya Sato, Takashi Baba, Yasuyuki Ohkawa, Mikita Suyama, Ken-Ichirou Morohashi
Fetal Leydig cells (FLCs) and adult Leydig cells (ALCs) develop in the mammalian prenatal and postnatal testes, respectively. In mice, FLCs emerge in the interstitial space of the testis as early as embryonic day 12.5 and thereafter increase in number during the fetal stage. We previously established a transgenic mouse line in which FLCs are labeled with EGFP and demonstrated that the EGFP-labeled FLCs were present even in adult testes. However, the characteristics of FLCs during postnatal stages remained unclear...
December 14, 2016: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/27914989/transcriptome-analysis-of-adult-and-fetal-trabecular-meshwork-cornea-and-ciliary-body-tissues-by-rna-sequencing
#20
Megan Ulmer Carnes, R Rand Allingham, Allison Ashley-Koch, Michael A Hauser
PURPOSE: To characterize the transcriptional landscape of human adult and fetal trabecular meshwork (TM), cornea, and ciliary body (CB) tissues, and to evaluate the expression level of candidate genes selected from genetic association studies of primary-open angle glaucoma, central corneal thickness, intraocular pressure, vertical cup to disc ratio, and optic nerve parameters. METHODS: Deep RNA sequencing was performed on the selected human tissues. Transcriptome analyses were performed to 1) characterize the total number of expressed genes, 2) identify the most highly expressed genes, 3) estimate the number of novel transcripts, and 4) evaluate the expression of candidate genes in each tissue...
November 30, 2016: Experimental Eye Research
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