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Developmental coordination

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https://www.readbyqxmd.com/read/28324024/thyroid-hormone-receptor-%C3%AE-controls-developmental-timing-and-regulates-the-rate-and-coordination-of-tissue-specific-metamorphosis-in-xenopus-tropicalis
#1
Luan Wen, Yuki Shibata, Dan Su, Liezhen Fu, Nga Luu, Yun-Bo Shi
Thyroid hormone (T3) receptor (TR) mediates the effects of T3 on organ metabolism and animal development. There are two TR genes, TRα and TRβ, in all vertebrates. During animal development, TRα expression is activated earlier than zygotic T3 synthesis and secretion into the plasma, implicating a developmental role of TRα both in the presence and absence of T3. Using T3-dependend amphibian metamorphosis as a model, we have previously proposed a dual functional model for TRs, in particular TRα, during development...
March 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28319949/the-impact-of-kidney-development-on-the-life-course-a-consensus-document-for-action
#2
(no author information available yet)
Hypertension and chronic kidney disease (CKD) have a significant impact on global morbidity and mortality. The Low Birth Weight and Nephron Number Working Group has prepared a consensus document aimed to address the relatively neglected issue for the developmental programming of hypertension and CKD. It emerged from a workshop held on April 2, 2016, including eminent internationally recognized experts in the field of obstetrics, neonatology, and nephrology. Through multidisciplinary engagement, the goal of the workshop was to highlight the association between fetal and childhood development and an increased risk of adult diseases, focusing on hypertension and CKD, and to suggest possible practical solutions for the future...
March 21, 2017: Nephron
https://www.readbyqxmd.com/read/28319609/developmental-alterations-in-huntington-s-disease-neural-cells-and-pharmacological-rescue-in-cells-and-mice
#3
(no author information available yet)
Neural cultures derived from Huntington's disease (HD) patient-derived induced pluripotent stem cells were used for 'omics' analyses to identify mechanisms underlying neurodegeneration. RNA-seq analysis identified genes in glutamate and GABA signaling, axonal guidance and calcium influx whose expression was decreased in HD cultures. One-third of gene changes were in pathways regulating neuronal development and maturation. When mapped to stages of mouse striatal development, the profiles aligned with earlier embryonic stages of neuronal differentiation...
March 20, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28304334/kdm2-family-members-are-regulated-by-hif-1-in-hypoxia
#4
Michael Batie, Jimena Druker, Laura D'Ignazio, Sonia Rocha
Hypoxia is not only a developmental cue but also a stress and pathological stimulus in many human diseases. The response to hypoxia at the cellular level relies on the activity of the transcription factor family, hypoxia inducible factor (HIF). HIF-1 is responsible for the acute response and transactivates a variety of genes involved in cellular metabolism, cell death, and cell growth. Here, we show that hypoxia results in increased mRNA levels for human lysine (K)-specific demethylase 2 (KDM2) family members, KDM2A and KDM2B, and also for Drosophila melanogaster KDM2, a histone and protein demethylase...
March 17, 2017: Cells
https://www.readbyqxmd.com/read/28300610/changes-in-microrna-abundance-may-regulate-diapause-in-the-flesh-fly-sarcophaga-bullata
#5
Julie A Reynolds, Justin T Peyton, David L Denlinger
Diapause, an alternative developmental pathway characterized by changes in developmental timing and metabolism, is coordinated by molecular mechanisms that are not completely understood. MicroRNA (miRNA) mediated gene silencing is emerging as a key component of animal development and may have a significant role in initiating, maintaining, and terminating insect diapause. In the present study, we test this possibility by using high-throughput sequencing and qRT-PCR to discover diapause-related shifts in miRNA abundance in the flesh fly, Sarcophaga bullata...
March 11, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28295392/erecta-signaling-controls-arabidopsis-inflorescence-architecture-through-chromatin-mediated-activation-of-pre1-expression
#6
Hanyang Cai, Lihua Zhao, Lulu Wang, Man Zhang, Zhenxia Su, Yan Cheng, Heming Zhao, Yuan Qin
Flowering plants display a remarkable diversity in inflorescence architecture, and pedicel length is one of the key contributors to this diversity. In Arabidopsis thaliana, the receptor-like kinase ERECTA (ER) mediated signaling pathway plays important roles in regulating inflorescence architecture by promoting cell proliferation. However, the regulating mechanism remains elusive in the pedicel. Genetic interactions between ERECTA signaling and the chromatin remodeling complex SWR1 in the control of inflorescence architecture were studied...
March 13, 2017: New Phytologist
https://www.readbyqxmd.com/read/28292420/fat2-and-lar-dance-a-pas-de-deux-during-collective-cell-migration
#7
Qiyan Mao, Jules Lavalou, Thomas Lecuit
What coordinates the internal leading and trailing edges in collectively migrating cells is largely unknown. In this issue of Developmental Cell, Barlan et al. (2017) delineate a Fat2/Lar planar signaling pathway at the basal, motile cell-cell contacts of Drosophila egg chamber follicle cells.
March 13, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28289224/patterns-of-coordinated-cortical-remodeling-during-adolescence-and-their-associations-with-functional-specialization-and-evolutionary-expansion
#8
Aristeidis Sotiras, Jon B Toledo, Raquel E Gur, Ruben C Gur, Theodore D Satterthwaite, Christos Davatzikos
During adolescence, the human cortex undergoes substantial remodeling to support a rapid expansion of behavioral repertoire. Accurately quantifying these changes is a prerequisite for understanding normal brain development, as well as the neuropsychiatric disorders that emerge in this vulnerable period. Past accounts have demonstrated substantial regional heterogeneity in patterns of brain development, but frequently have been limited by small samples and analytics that do not evaluate complex multivariate imaging patterns...
March 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28288969/visualizing-endoderm-cell-populations-and-their-dynamics-in-the-mouse-embryo-with-a-hex-tdtomato-reporter
#9
Tao Wu, Anna-Katerina Hadjantonakis, Sonja Nowotschin
Live imaging is the requisite tool for studying cell behaviors driving embryonic development and tissue formation. Genetically-encoded reporters expressed under cell type-specific cis-regulatory elements that drive fluorescent protein expression at sufficient levels for visualization in living specimens have become indispensable for these studies. Increasingly dual-color (red-green) imaging is used for studying the coordinate behaviors if two cell populations of interest, identifying and characterizing subsets of within broader cell populations or subcellular features...
March 13, 2017: Biology Open
https://www.readbyqxmd.com/read/28288760/isolation-and-characterization-of-exosomes-derived-from-fertile-sheep-hydatid-cysts
#10
Mar Siles-Lucas, Carlos Sánchez-Ovejero, María González-Sánchez, Esperanza González, Juan Manuel Falcón-Pérez, Belgees Boufana, Federica Fratini, Adriano Casulli, Raúl Manzano-Román
Cystic echinococcosis (CE) is a chronic and complex zoonotic disease. Information on the mechanisms involved in parasite establishment, growth and persistence remain limited. These may be modulated by a crosstalk between extracellular vesicles (EVs). EVs including exosomes and microvesicles are able to carry developmental signaling proteins which coordinate growth and establishment of several parasites. Here, an exosome enriched EV fraction was isolated from hydatid fluid (HF) of fertile sheep cysts. A proteomic analysis of this fraction identified a number of parasite-derived vesicle-membrane associated proteins as well as cytosolic proteins...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28287403/rankl-coordinates-multiple-osteoclastogenic-pathways-by-regulating-expression-of-ubiquitin-ligase-rnf146
#11
Yoshinori Matsumoto, Jose Larose, Oliver A Kent, Melissa Lim, Adele Changoor, Lucia Zhang, Yaryna Storozhuk, Xiaohong Mao, Marc D Grynpas, Feng Cong, Robert Rottapel
Bone undergoes continuous remodeling due to balanced bone formation and resorption mediated by osteoblasts and osteoclasts, respectively. Osteoclasts arise from the macrophage lineage, and their differentiation is dependent on RANKL, a member of the TNF family of cytokines. Here, we have provided evidence that RANKL controls the expression of 3BP2, an adapter protein that is required for activation of SRC tyrosine kinase and simultaneously coordinates the attenuation of β-catenin, both of which are required to execute the osteoclast developmental program...
March 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28283555/developmental-genetic-dietary-and-xenobiotic-influences-on-neonatal-hyperbilirubinemia
#12
Mei-Fei Yueh, Shujuan Chen, Nghia Nguyen, Robert H Tukey
Hyperbilirubinemia, caused by the accumulation of unconjugated bilirubin, is one of the most common clinical diagnoses in both premature and term newborns. Owing to the fact that bilirubin is metabolized solely through glucuronidation by UDP-glucuronosyltransferase (UGT) 1A1, it is now known that immaturity of UGT1A1 in combination with overproduction of bilirubin during the developmental stage acts as a bottleneck to bilirubin elimination and predisposes the infant to high TBS levels. While neonatal jaundice is mostly benign, excessively high levels of serum bilirubin in a small percentage of newborns can cause bilirubin-induced neurologic dysfunction (BIND), potentially leading to permanent brain damage, a condition known as kernicterus...
March 10, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28282530/effect-of-early-intervention-on-functional-outcome-at-school-age-follow-up-and-process-evaluation-of-a-randomised-controlled-trial-in-infants-at-risk
#13
Elisa G Hamer, Tjitske Hielkema, Arend F Bos, Tineke Dirks, Siebrigje J Hooijsma, Heleen A Reinders-Messelink, Rivka F Toonen, Mijna Hadders-Algra
BACKGROUND: The long-term effect of early intervention in infants at risk for developmental disorders is unclear. The VIP project (n=46, originally) evaluated by means of a randomised controlled trial the effect of the family centred early intervention programme COPCA (Coping with and Caring for infants with special needs) in comparison to that of traditional infant physiotherapy (TIP). AIMS: To evaluate the effect of early intervention on functional outcome at school age...
March 1, 2017: Early Human Development
https://www.readbyqxmd.com/read/28267956/signaling-in-early-maize-kernel-development
#14
REVIEW
Nicolas M Doll, Nathalie Depège-Fargeix, Peter M Rogowsky, Thomas Widiez
Developing the next plant generation within the seed requires the coordination of complex programs driving pattern formation, growth, and differentiation of the three main seed compartments: the embryo (future plant), the endosperm (storage compartment), representing the two filial tissues, and the surrounding maternal tissues. This review focuses on the signaling pathways and molecular players involved in early maize kernel development. In the 2 weeks following pollination, functional tissues are shaped from single cells, readying the kernel for filling with storage compounds...
March 6, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28265276/abscisic-acid-signaling-and-abiotic-stress-tolerance-in-plants-a-review-on-current-knowledge-and-future-prospects
#15
REVIEW
Kanchan Vishwakarma, Neha Upadhyay, Nitin Kumar, Gaurav Yadav, Jaspreet Singh, Rohit K Mishra, Vivek Kumar, Rishi Verma, R G Upadhyay, Mayank Pandey, Shivesh Sharma
Abiotic stress is one of the severe stresses of environment that lowers the growth and yield of any crop even on irrigated land throughout the world. A major phytohormone abscisic acid (ABA) plays an essential part in acting toward varied range of stresses like heavy metal stress, drought, thermal or heat stress, high level of salinity, low temperature, and radiation stress. Its role is also elaborated in various developmental processes including seed germination, seed dormancy, and closure of stomata. ABA acts by modifying the expression level of gene and subsequent analysis of cis- and trans-acting regulatory elements of responsive promoters...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28264995/the-dev-operon-regulates-the-timing-of-sporulation-during-myxococcus-xanthus-development
#16
Ramya Rajagopalan, Lee Kroos
Myxococcus xanthus undergoes multicellular development when starved. Thousands of rod-shaped cells coordinate their movements and aggregate into mounds in which cells differentiate into spores. Mutations in the dev operon impair development. The dev operon encompasses a clustered regularly interspaced short palindromic repeat-associated (CRISPR-Cas) system. Null mutations in devI, a small gene at the beginning of the dev operon, suppress the developmental defects caused by null mutations in the downstream devR and devS genes, but failed to suppress defects caused by a small, in-frame deletion in devT We provide evidence that the original mutant has a second-site mutation...
March 6, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28263180/uncoupling-apical-constriction-from-tissue-invagination
#17
SeYeon Chung, Sangjoon Kim, Deborah J Andrew
Apical constriction is a widely utilized cell shape change linked to folding, bending and invagination of polarized epithelia. It remains unclear how apical constriction is regulated spatiotemporally during tissue invagination and how this cellular process contributes to tube formation in different developmental contexts. Using Drosophila salivary gland (SG) invagination as a model, we show that regulation of folded gastrulation expression by the Fork head transcription factor is required for apicomedial accumulation of Rho kinase and non-muscle myosin II, which coordinate apical constriction...
March 6, 2017: ELife
https://www.readbyqxmd.com/read/28261122/reference-as-an-interactive-achievement-sequential-and-longitudinal-analyses-of-labeling-interactions-in-shared-book-reading-and-free-play
#18
Vivien Heller, Katharina J Rohlfing
The present study examines how young children and their caregivers establish reference by jointly developing stable patterns of bodily, perceptual, and interactive coordination. Our longitudinal investigation focuses on two mother-child dyads engaged in picture-book reading and play. The dyads were videotaped at home once every 6 weeks while the children aged from 9 to 24 months. Inspired by conversation analysis and multimodal analysis, our developmental approach builds on the insight that the situated and embodied production of reference is fundamentally an interactive achievement...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28254784/assembly-of-embryonic-and-extra-embryonic-stem-cells-to-mimic-embryogenesis-in-vitro
#19
Sarah Ellys Harrison, Berna Sozen, Neophytos Christodoulou, Christos Kyprianou, Magdalena Zernicka-Goetz
Mammalian embryogenesis requires intricate interactions between embryonic and extra-embryonic tissues to orchestrate and coordinate morphogenesis with changes in developmental potential. Here, we combine mouse embryonic stem cells (ESCs) and extra-embryonic trophoblast stem cells (TSCs) in a 3D-scaffold to generate structures whose morphogenesis is remarkably similar to natural embryos. By using genetically-modified stem cells and specific inhibitors, we show embryogenesis of ESC- and TSC-derived embryos, ETS-embryos, depends on crosstalk involving Nodal signaling...
March 2, 2017: Science
https://www.readbyqxmd.com/read/28251461/the-genome-wide-molecular-regulation-of-mouse-gastrulation-embryo
#20
REVIEW
Guangdun Peng, Naihe Jing
The diverse morphologies among vertebrate species stems from the evolution of a basic body plan that is constituted by a spatially organized ensemble of tissue lineage progenitors. At gastrulation, this body plan is established through a coordinated morphogenetic process and the delineation of tissue lineages that are driven by the activity of the genome. To explore the molecular mechanisms, in a comprehensive context, it is imperative to glean an understanding of the region- and population-specific genetic activity underpinning this fundamental developmental process...
February 27, 2017: Science China. Life Sciences
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