Pancreatic-hepatic switches in vivo.

abstract：:The human RUNX3/AML2 gene belongs to the 'runt domain' family of transcription factors that act as gene expression regulators in major developmental pathways. Here, we describe the expression pattern of Runx3 during mouse embryogenesis compared to the expression pattern of Runx1. E10.5 and E14.5-E16.5 embryos were ana...

journal_title：Mechanisms of development

authors： Levanon D,Brenner O,Negreanu V,Bettoun D,Woolf E,Eilam R,Lotem J,Gat U,Otto F,Speck N,Groner Y

更新日期：2001-12-01 00:00:00

abstract：:We have analysed the cell lineage relationships between larval and imaginal mesodermal primordia at the blastoderm stage by homotopic single cell transplantations. The primordia of adepithelial cells, the precursors of adult thoracic muscles, are restricted to the region from 50 to 65% egg length within the ventrally ...

journal_title：Mechanisms of development

authors： Holz A,Meise M,Janning W

更新日期：1997-02-01 00:00:00

abstract：:Nemo-like kinases define a novel family of serine/threonine kinases that are involved in integrating multiple signaling pathways. They are conserved regulators of Wnt/Wingless pathways, which may coordinate Wnt with TGFbeta-mediated signaling. Drosophila nemo was identified through its involvement in epithelial planar...

journal_title：Mechanisms of development

authors： Mirkovic I,Charish K,Gorski SM,McKnight K,Verheyen EM

更新日期：2002-11-01 00:00:00

abstract：:We have recently identified a new G protein-coupled receptor, msr/apj, whose transcripts are detected in the endothelium of the primary blood vessels and the newly forming heart (Mech. Dev. 1999;84:199). Its expression during formation of the embryonic vasculature incited us to investigate whether expression of the re...

journal_title：Mechanisms of development

authors： Saint-Geniez M,Masri B,Malecaze F,Knibiehler B,Audigier Y

更新日期：2002-01-01 00:00:00

abstract：:Cadherins are Ca(+2)-dependent cell surface proteins involved in the specification of the adhesive properties of cells. They are supposed to play a critical role in morphogenesis and pattern formation. In this paper we show that in the sea urchin embryo there are at least two different cadherins of relative molecular ...

journal_title：Mechanisms of development

authors： Ghersi G,Salamone M,Dolo V,Levi G,Vittorelli ML

更新日期：1993-04-01 00:00:00

abstract：:Deflecting biomineralized crystals attached to vestibular hair cells are necessary for maintaining balance. Zebrafish (Danio rerio) are useful organisms to study these biomineralized crystals called otoliths, as many required genes are homologous to human otoconial development. We sought to identify and characterize t...

journal_title：Mechanisms of development

authors： Thiessen KD,Grzegorski SJ,Chin Y,Higuchi LN,Wilkinson CJ,Shavit JA,Kramer KL

更新日期：2019-06-01 00:00:00

abstract：:In multicellular organisms, very little is known about the role of mRNA stability in development, and few proteins involved in degradation pathways have been characterized. We have identified the Drosophila homologue of XRN1, which is the major cytoplasmic 5'-3' exoribonuclease in Saccharomyces cerevisiae. The protein...

journal_title：Mechanisms of development

authors： Till DD,Linz B,Seago JE,Elgar SJ,Marujo PE,Elias ML,Arraiano CM,McClellan JA,McCarthy JE,Newbury SF

更新日期：1998-12-01 00:00:00

abstract：:Following tissue damage the immune response, including inflammation, has been considered an inevitable condition to build the host defense against invading pathogens. The recruitment of innate immune leukocytes to injured tissue is observed in both vertebrates and invertebrates. However, it is still not conclusive whe...

journal_title：Mechanisms of development

authors： Katsuyama T,Paro R

更新日期：2013-02-01 00:00:00

abstract：:Mammalian Krüppel-like transcription factors include 12 zinc finger proteins (KLF1-12) that are involved in regulation of cell proliferation and differentiation during morphogenesis and development (Trends Biochem. Sci., 24 (1999) 236). Structural considerations have segregated KLF6 and KLF7 into a separate sub-group,...

journal_title：Mechanisms of development

authors： Laub F,Aldabe R,Ramirez F,Friedman S

更新日期：2001-08-01 00:00:00

abstract：:In situ hybridization analysis of Xenopus laevis embryos reveals that mRNA encoding the platelet-derived growth factor alpha receptor (PDGFR alpha) is expressed in cephalic neural crest masses prior to migration from the future neural tube and during their migration into the visceral arches. The analysis of fluorescen...

journal_title：Mechanisms of development

authors： Ho L,Symes K,Yordán C,Gudas LJ,Mercola M

更新日期：1994-12-01 00:00:00

abstract：:The Ras protein activates at least three different pathways during early development. Two of them regulate mesodermal gene expression and the third is thought to participate in the control of actin cytoskeleton dynamics via the Ral protein. From a yeast two-hybrid screen of a Xenopus maternal cDNA library, we identifi...

journal_title：Mechanisms of development

authors： Lebreton S,Boissel L,Iouzalen N,Moreau J

更新日期：2004-12-01 00:00:00

abstract：:Here we present the cloning of a full-length zebrafish pdgfr-alpha cDNA as well as the expression of this gene during zebrafish embryogenesis. We show that zebrafish pdgfr-alpha mRNA is present at high levels in the fertilized egg as well as in all embryonic cells up to the end of gastrulation. Spatially restricted ex...

journal_title：Mechanisms of development

authors： Liu L,Chong SW,Balasubramaniyan NV,Korzh V,Ge R

更新日期：2002-08-01 00:00:00

abstract：:This is the first in situ hybridization analysis of expression of a tumor necrosis factor (TNF) receptor associated factor (TRAF) during development. TRAF4 is observed throughout mouse embryogenesis, most notably during ontogenesis of the central (CNS) and peripheral (PNS) nervous system, and of nervous tissues of sen...

journal_title：Mechanisms of development

authors： Masson R,Régnier CH,Chenard MP,Wendling C,Mattei MG,Tomasetto C,Rio MC

更新日期：1998-02-01 00:00:00

abstract：:Epimorphic regeneration is a process allowing the animal to regain its lost structure which depends on the resident pluripotent stem cells as well as de-differentiation of existing cells to form multi-potent stem cells. Many studies have been done to understand the appendage regeneration mechanism. The animal model us...

journal_title：Mechanisms of development

authors： Murawala H,Ranadive I,Patel S,Desai I,Balakrishnan S

更新日期：2018-04-01 00:00:00

abstract：:Five chick homeodomain proteins (CHOXs), CHOX-1.7, -1.1, -1.4, -4.2 and -2.6, had different transcription-regulating activities in a chick cultured cell line, LMH. In particular, CHOX-1.7 highly activated transcription when NP6 was used as the target site whereas CHOX-1.4 did not. This was mainly due to differences in...

journal_title：Mechanisms of development

authors： Sasaki H,Yamamoto M,Kuroiwa A

更新日期：1992-03-01 00:00:00

abstract：:We describe the identification and expression pattern of Xenopus frizzled 4 (Xfz4) gene during early development. Xfz4 protein presents characteristic features of a frizzled family member. The mature protein sequence of Xfz4 is 93% identical to murine Mfz4. Xfz4 is a maternal mRNA, its expression level remains constan...

journal_title：Mechanisms of development

authors： Shi DL,Boucaut JC

更新日期：2000-06-01 00:00:00

abstract：:Drosophila tracheal fusion cells play multiple important roles in guiding and facilitating tracheal branch fusion. Mechanistic understanding of how fusion cells function during development requires deciphering their transcriptional circuitry. In this paper, three genes with distinct patterns of fusion cell expression ...

journal_title：Mechanisms of development

authors： Jiang L,Pearson JC,Crews ST

更新日期：2010-05-01 00:00:00

abstract：:The study of distal lung morphogenesis and vascular development would be greatly facilitated by an in vitro or ex vivo experimental model. In this study we show that the growth of mouse embryonic day 12.5 lung rudiments implanted underneath the kidney capsules of syngeneic or immunodeficient hosts follows closely lung...

journal_title：Mechanisms of development

authors： Vu TH,Alemayehu Y,Werb Z

更新日期：2003-03-01 00:00:00

abstract：:We present a complete staging table of normal development for the lungless salamander, Hemidactylium scutatum (Caudata: Plethodontidae). Terrestrial egg clutches from naturally ovipositing females were collected and maintained at 15 °C in the laboratory. Observations, photographs, and time-lapse movies of embryos were...

journal_title：Mechanisms of development

authors： Hurney CA,Babcock SK,Shook DR,Pelletier TM,Turner SD,Maturo J,Cogbill S,Snow MC,Kinch K

更新日期：2015-05-01 00:00:00

abstract：:Lipids, in addition to being structural components of cell membranes, can act as signaling molecules. Bioactive lipids, such as sphingosine 1-phosphate (S1P) and lysophosphatidic acid (LPA), may act intracellularly as second messengers or be secreted and act as intercellular signaling molecules. Such molecules can aff...

journal_title：Mechanisms of development

authors： Renault AD,Starz-Gaiano M,Lehmann R

更新日期：2002-12-01 00:00:00

abstract：:During Drosophila eye development, cell differentiation is preceded by the formation of a morphogenetic furrow, which progresses across the epithelium from posterior to anterior. Cells within the morphogenetic furrow are apically constricted and shortened along their apical-basal axis. However, how these cell shape ch...

journal_title：Mechanisms of development

authors： Schlichting K,Dahmann C

更新日期：2008-08-01 00:00:00

abstract：:The runt gene plays an important role in the genetic hierarchy that generates the segmented body pattern during the early stages of Drosophila embryogenesis. We studied mRNA expression in mutant embryos in order to investigate the regulation of runt transcription during these stages. We used sensitive whole-mount in s...

journal_title：Mechanisms of development

authors： Klingler M,Gergen JP

更新日期：1993-09-01 00:00:00

abstract：:A key role for phosphorylation of Smad2 by TGFβ superfamily ligands in the axial patterning of early embryos is well established. The regulation and role of Smad2 signaling in post-neurula embryonic patterning, however, is less well understood. While a variety of TGFβ superfamily ligands are implicated in various stag...

journal_title：Mechanisms of development

authors： Ho DM,Yeo CY,Whitman M

更新日期：2010-09-01 00:00:00

abstract：:We analyse the role of the empty spiracles (ems) gene in embryonic brain and ventral nerve cord development. ems is differentially expressed in the neurectoderm of the anterior head versus the trunk region of early embryos. A distal enhancer region drives expression in the deutocerebral brain anlage and a proximal enh...

journal_title：Mechanisms of development

authors： Hartmann B,Hirth F,Walldorf U,Reichert H

更新日期：2000-02-01 00:00:00

abstract：:Six/sine oculis (Six/so) class genes, with representatives in vertebrates and invertebrates, include members with key developmental roles in the anterior part of the central nervous system (CNS) and eye. Having characterized the role of the first planarian gene of the Six/so family in eye development, we attempted to ...

journal_title：Mechanisms of development

authors： Pineda D,Saló E

更新日期：2002-12-01 00:00:00

abstract：:The Notch effector E(spl)M8 is phosphorylated at Ser159 by CK2, a highly conserved Ser/Thr protein kinase. We have used the Gal4-UAS system to assess the role of M8 phosphorylation during bristle and eye morphogenesis by employing a non-phosphorylatable variant (M8SA) or one predicted to mimic the 'constitutively' pho...

journal_title：Mechanisms of development

authors： Karandikar UC,Trott RL,Yin J,Bishop CP,Bidwai AP

更新日期：2004-03-01 00:00:00

abstract：:Vertebrates display striking left-right asymmetries in the placement of internal organs, which are concealed by a seemingly bilaterally symmetric body plan. The establishment of asymmetries about the left-right axis occurs early during embryo development and requires the concerted and sequential action of several epig...

journal_title：Mechanisms of development

authors： Raya A,Izpisua Belmonte JC

更新日期：2004-09-01 00:00:00

abstract：:The maintenance of pluripotential embryonic stem (ES) cells is dependent on the cytokine LIF. This report documents the mRNA expression profiles of LIF and the two components of the LIF-receptor complex, LIF-R and gp130, during early mouse embryogenesis. These mRNAs were undetectable in 1- or 2-cell embryos, but all w...

journal_title：Mechanisms of development

authors： Nichols J,Davidson D,Taga T,Yoshida K,Chambers I,Smith A

更新日期：1996-07-01 00:00:00

abstract：:The embryonic fins and the tip of adult fins of teleost fish are supported by rows of straight, unmineralized fibrils called actinotrichia. The proximal ends of the actinotrichia are bundled and the mineralized bones called lepidotrichia are made along them. Since malformation in actinotrichia causes wavy fin bones, t...

journal_title：Mechanisms of development

authors： Kuroda J,Iwane AH,Kondo S

更新日期：2018-10-01 00:00:00

abstract：:Many proteins involved in signal transduction and cell adhesion are characterized by the presence of an extracellular domain with repeated copies of a leucine-rich motif (LRR). Here we report the isolation and characterization of a novel gene, tlr (for Toll-like receptor), which encodes a protein containing multiple L...

journal_title：Mechanisms of development

authors： Chiang C,Beachy PA

更新日期：1994-09-01 00:00:00