Compartmentalized Eph receptor and ephrin expression in the thymus.

abstract：:Haploinsufficiency for the HMG-box transcription factor SOX2 results in abnormalities of the human ventral forebrain and its derivative structures. These defects include anophthalmia (absence of eye), microphthalmia (small eye) and hypothalamic hamartoma (HH), an overgrowth of the ventral hypothalamus. To determine ho...

journal_title：Mechanisms of development

authors： Langer L,Taranova O,Sulik K,Pevny L

更新日期：2012-03-01 00:00:00

abstract：:A model of the trans-regulation of the Drosophila pair-rule segmentation gene, paired (prd), has been derived from the observed alterations in the distribution of prd transcripts during early embryogenesis in single and double pair-rule mutants. Important aspects of the model include the following features and implica...

journal_title：Mechanisms of development

authors： Baumgartner S,Noll M

更新日期：1990-12-01 00:00:00

abstract：:During heart development, cells of the endocardial cushions undergo an epithelial-mesenchymal transformation and migrate into the surrounding extracellular matrix. This event is required for the normal formation of valves and chamber septation. Coincident with this phenotypic change is the expression of the serine pro...

journal_title：Mechanisms of development

authors： Majka SM,McGuire PG

更新日期：1997-11-01 00:00:00

abstract：:Male and female embryonic stem (ES) cell lines were derived from the area pellucidae of Stage X (EG&K) chicken embryos. These ES cell lines were grown in culture for extended periods of time and the majority of the cells retained a diploid karyotype. When reintroduced into Stage VI-X (EG&K) recipient embryos, the cES ...

journal_title：Mechanisms of development

authors： van de Lavoir MC,Mather-Love C,Leighton P,Diamond JH,Heyer BS,Roberts R,Zhu L,Winters-Digiacinto P,Kerchner A,Gessaro T,Swanberg S,Delany ME,Etches RJ

更新日期：2006-01-01 00:00:00

abstract：:In this paper we analyze the expression in follicular cells and regulation of the vitelline membrane protein gene we identified in region 32E of the second chromosome of D. melanogaster (VMP32E). We report germ line transformation results obtained with different kinds of gene fusion leading to the identification of a ...

journal_title：Mechanisms of development

authors： Gargiulo G,Gigliotti S,Malva C,Graziani F

更新日期：1991-11-01 00:00:00

abstract：:Nk(x)-type homeobox genes are an evolutionarily conserved family that regulate diverse developmental processes. Here we describe a novel Drosophila gene, Nk6, which encodes an Nk-type transcription factor most homologous to vertebrate Nkx6.1 and Nkx6.2. The homeodomains and NK decapeptide domains of all three proteins...

journal_title：Mechanisms of development

authors： Uhler J,Garbern J,Yang L,Kamholz J,Mellerick DM

更新日期：2002-08-01 00:00:00

abstract：:Each sensory organ of the Drosophila peripheral nervous system is derived from a single sensory organ precursor cell (SOP). These originate in territories defined by expression of the proneural genes of the Achaete-Scute complex (AS-C). Formation of ectopic sensilla outside these regions is prevented by transcriptiona...

journal_title：Mechanisms of development

authors： Badenhorst P,Finch JT,Travers AA

更新日期：2002-09-01 00:00:00

abstract：:We have identified a short segment of the mouse Pax-6 gene 5' flanking region that is necessary and sufficient for reporter construct expression in components of the eye derived from non-neural ectoderm. This transcriptional control element has a highly conserved nucleotide sequence over 341 bp and is located approxim...

journal_title：Mechanisms of development

authors： Williams SC,Altmann CR,Chow RL,Hemmati-Brivanlou A,Lang RA

更新日期：1998-05-01 00:00:00

abstract：:We have investigated in detail the expression patterns of two Gata genes, cGata2 and cGata3, during early chick development. In addition to confirming previously described expression of these two genes in developing brain, kidney and blood islands, this study reveals several important novel expression domains during v...

journal_title：Mechanisms of development

authors： Sheng G,Stern CD

更新日期：1999-09-01 00:00:00

abstract：:Although the molecular mechanisms directing anteroposterior patterning of the Drosophila embryo (long-germband mode) are well understood, how these mechanisms were evolved from an ancestral mode of insect embryogenesis remains largely unknown. In order to gain insight into mechanisms of evolution in insect embryogenes...

journal_title：Mechanisms of development

authors： Shinmyo Y,Mito T,Matsushita T,Sarashina I,Miyawaki K,Ohuchi H,Noji S

更新日期：2005-02-01 00:00:00

abstract：:To elucidate roles of fibroblast growth factors (FGF)18 during vertebrate development, we examined expression patterns of Fgf18 in chick embryos and observed effects of FGF18 protein on the Hensen's node, isthmus, and limb buds. Fgf18 is expressed on the right side of the node before the expression of Fgf8 starts. FGF...

journal_title：Mechanisms of development

authors： Ohuchi H,Kimura S,Watamoto M,Itoh N

更新日期：2000-07-01 00:00:00

abstract：:Mastermind, which is a Notch signal component, is a nuclear protein and is thought to contribute to the transactivation of target genes. Previously we showed that XMam1, Xenopus Mastermind1, was essential in the transactivation of a Notch target gene, XESR-1, and was involved in primary neurogenesis. To examine the fu...

journal_title：Mechanisms of development

authors： Katada T,Ito M,Kojima Y,Miyatani S,Kinoshita T

更新日期：2006-11-01 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：:Xenopus embryos in solutions containing suramin show a dose-dependent decrease in the formation of dorsoanterior structures. Continuous treatment with 1 mM suramin produces embryos without mesodermal derivatives but with mesenchymal cells. Brief immersions of 20 min were used to determine the most sensitive stages and...

journal_title：Mechanisms of development

authors： Cardellini P,Polo C,Coral S

更新日期：1994-01-01 00:00:00

abstract：:Avian neural crest cells migrate on precise pathways to their target areas where they form a wide variety of cellular derivatives, including neurons, glia, pigment cells and skeletal components. In one portion of their pathway, trunk neural crest cells navigate in the somitic mesoderm in a segmental fashion, invading ...

journal_title：Mechanisms of development

authors： Krull CE

更新日期：2001-07-01 00:00:00

abstract：:To examine the role of the Oct-6 gene in Schwann cell differentiation we have cloned and characterized the chicken and zebrafish homologues of the mouse Oct-6 gene. While highly homologous in the Pit1-Oct1/2-Unc86 (POU) domain, sequence similarities are limited outside this domain. Both genes are intronless and both p...

journal_title：Mechanisms of development

authors： Levavasseur F,Mandemakers W,Visser P,Broos L,Grosveld F,Zivkovic D,Meijer D

更新日期：1998-06-01 00:00:00

abstract：:In the sea urchin embryo, Nodal is the earliest known signal to play a role in the specification of the oral ectodermal territory. Nodal, a TGF-beta ligand, is first expressed in the presumptive oral ectoderm at approximately 7 H of development. Nodal overexpression produces a distinctive bell-shaped phenotype with ex...

journal_title：Mechanisms of development

authors： Agca C,Klein WH,Venuti JM

更新日期：2009-05-01 00:00:00

abstract：:The dual nature of pancreatic tissue permits both endocrine and exocrine functions. Enzymatic secretions by the exocrine pancreas help digestive processes while the pancreatic hormones regulate glucose homeostasis and energy metabolism. Pancreas organogenesis is defined by a conserved array of signaling pathways that ...

journal_title：Mechanisms of development

authors： Dumasia NP,Pethe PS

更新日期：2020-12-01 00:00:00

abstract：:The segmentation of vertebrate embryos depends on a complex genetic network that generates highly dynamic gene expression. Many of the elements of the network have been identified, but their interaction and their influence on segmentation remain poorly understood. A few mathematical models have been proposed to explai...

journal_title：Mechanisms of development

authors： Cinquin O

更新日期：2007-08-01 00:00:00

abstract：:Mll, Brg1 and Brm are vertebrate homologues of Drosophila trithorax group (trxG) genes. We isolated chicken Mll cDNA clones, and examined patterns of Mll, Brg1 and Brm expression in chick embryos. All three genes were expressed from embryonic stage 2 onwards. Mll transcripts were just detectable in all tissues by in s...

journal_title：Mechanisms of development

authors： Schofield J,Isaac A,Golovleva I,Crawley A,Goodwin G,Tickle C,Brickell P

更新日期：1999-01-01 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：:The vascularization of the central nervous system occurs by angiogenic sprouting, a process in which different factors like vascular endothelial growth factor (VEGF) and angiopoietin (Ang)-1/2 must act in a coordinated fashion. We investigated how these factors participate in capillarization of the cerebellum, an area...

journal_title：Mechanisms of development

authors： Acker T,Beck H,Plate KH

更新日期：2001-10-01 00:00:00

abstract：:The recessive mutant mouse jumonji (jmj), obtained by a gene trap strategy, shows neural tube defects in approximately half of homozygotes with a Balb/cA and 129/Ola mixed background. Here, we show that no neural tube defects are observed with a Balb/cA background. We also found hypoplasia of the liver, thymus and spl...

journal_title：Mechanisms of development

authors： Motoyama J,Kitajima K,Kojima M,Kondo S,Takeuchi T

更新日期：1997-08-01 00:00:00

abstract：:DEADSouth was selected in a screen for localized RNAs in Xenopus oocytes. In situ hybridization analysis shows that DEADSouth localizes to the vegetal cortex via the mitochondrial cloud early in oogenesis and segregates with germ plasm during early embryogenesis. These results lend further support for the general conc...

journal_title：Mechanisms of development

authors： MacArthur H,Houston DW,Bubunenko M,Mosquera L,King ML

更新日期：2000-07-01 00:00:00

abstract：:The homeobox gene Six4/AREC3 is a member of the vertebrate Six family of transcription factor genes. In this study we describe the cloning and expression of three zebrafish homologues of Six4/AREC3, six4.1, six4.2 and six4.3. These zebrafish Six4 proteins show high homology to the mammalian Six4/AREC3 proteins in the ...

journal_title：Mechanisms of development

authors： Kobayashi M,Osanai H,Kawakami K,Yamamoto M

更新日期：2000-11-01 00:00:00

abstract：:We have isolated and characterized two complete cDNA clones, Zfz8a and Zfz8b, which encode zebrafish Frizzled (Fz) homologues. The predicted protein sequences, spanning 579 and 576 amino acid residues for ZFz8a and ZFz8b, respectively, were highly homologous (78%) to each other and contained an extracellular cysteine-...

journal_title：Mechanisms of development

authors： Kim SH,Park HC,Yeo SY,Hong SK,Choi JW,Kim CH,Weinstein BM,Huh TL

更新日期：1998-11-01 00:00:00

abstract：:The Cbl family of proteins act as E3 ubiquitin-protein ligases and have been associated with the down regulation of a variety of receptor tyrosine kinases. Cbl proteins associate with many different cell signalling molecules suggesting that they may have functions outside of the RING finger-mediated ubiquitin ligase a...

journal_title：Mechanisms of development

authors： Hime GR,Abud HE,Garner B,Harris KL,Robertson H

更新日期：2001-04-01 00:00:00

abstract：:Here we report the use of double-stranded RNA (dsRNA) and morpholino technologies to specifically 'knock down' gene expression in early postimplantation mouse embryos. Sequence specific interference mediated by either dsRNA or by morpholino has been a useful tool for studying gene function in several organisms. Howeve...

journal_title：Mechanisms of development

authors： Mellitzer G,Hallonet M,Chen L,Ang SL

更新日期：2002-10-01 00:00:00

abstract：:Vegetally localized RNAs in Xenopus oocytes have been implicated in the establishment of the primary germ layers and the formation and development of the primordial germ cells. fatvg mRNA is localized through the late pathway to the vegetal cortex. Like Vg1 mRNA fatvg is distributed throughout the entire cortex; howev...

journal_title：Mechanisms of development

authors： Chan AP,Kloc M,Bilinski S,Etkin LD

更新日期：2001-01-01 00:00:00

abstract：:The growth and patterning of Drosophila wing and notum primordia depend on their subdivision into progressively smaller domains by secreted signals that emanate from localized sources termed organizers. While the mechanisms that organize the wing primordium have been studied extensively, those that organize the notum ...

journal_title：Mechanisms of development

authors： Del Signore SJ,Hayashi T,Hatini V

更新日期：2012-07-01 00:00:00