Abstract：
:An enhancer sequence found in the Protease Nexin-1 (PN-1) gene was shown to drive lacZ expression specifically at the met-/mesencephalic junction in transgenic mouse embryos. A functional study of this enhancer has been performed to better understand the mechanisms regulating isthmic gene expression. An octamer-binding site for POU domain factors was found to be crucial for the activity of the enhancer in vivo. Comparative expression studies of POU domain factors, electrophoretic mobility shift assays and transient transfection experiments, strongly suggest that Brn-1/-2 regulate the enhancer activity in vivo. In addition, in vitro experiments indicated that FGF-8 was required for the maintenance of the enhancer activity, but not for the synthesis of Bn-1/-2. The data represents the first functional evidence for a role of POU factors in the regulation of met-/mesencephalic gene expression. It also implies that at least two regulatory pathways, namely the FGF-8 signaling and the octamer-binding site pathway, synergistically interact to control the PN-1 enhancer activity in vivo.
journal_name
Mech Devjournal_title
Mechanisms of developmentauthors
Mihailescu D,Küry P,Monard Ddoi
10.1016/s0925-4773(99)00067-2subject
Has Abstractpub_date
1999-06-01 00:00:00pages
55-67issue
1-2eissn
0925-4773issn
1872-6356pii
S0925-4773(99)00067-2journal_volume
84pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1016/j.mod.2004.10.001
更新日期：2005-02-01 00:00:00
abstract：:The forkhead type Brain Factor 2 from mouse and chicken help pattern the forebrain, optic vesicle and kidney. We have isolated a Xenopus homolog (Xbf2) and found that during gastrulation it is expressed in the dorsolateral mesoderm, where it helps specify this territory by downregulating BMP-4 and its downstream genes...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00190-7
更新日期：1999-01-01 00:00:00
abstract：:Polycomb group (PcG) proteins regulate and maintain expression pattern of genes set early during development. Although originally isolated as regulators of homeotic genes, PcG members play a key role in epigenetic mechanisms that maintain the expression state of a large number of genes. All members of the two polycomb...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2015.07.013
更新日期：2015-11-01 00:00:00
abstract：:Homeobox genes regulate multiple aspects of mouse development including the axial patterning in the central nervous system. Some of the more divergent members of this gene family are expressed in the anterior region of the central nervous system where the Hox genes are not expressed. We previously reported the isolati...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(94)90089-2
更新日期：1994-08-01 00:00:00
abstract：:Tribolium castaneum is a well-characterised model insect, whose short germ-band mode of embryonic development is characteristic of many insect species and differs from the exhaustively studied Drosophila. Mechanisms of early neurogenesis, however, show significant conservation with Drosophila, as a characteristic patt...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2013.02.003
更新日期：2013-04-01 00:00:00
abstract：:C-terminal binding protein (CtBP) is an evolutionarily and functionally conserved transcriptional corepressor known to integrate diverse signals to regulate transcription. Drosophila CtBP (dCtBP) regulates tissue specification and segmentation during early embryogenesis. Here, we investigated the roles of dCtBP during...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2008.10.003
更新日期：2009-01-01 00:00:00
abstract：:The Dan gene was first identified as the putative rat tumor suppressor gene and encodes a protein structurally related to Cerberus and Gremlin in vertebrates. Xenopus DAN, as with Cerberus and Gremlin, was demonstrated to block bone morphogenetic protein (BMP) signaling by binding BMPs, and to be capable of inducing a...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(01)00522-6
更新日期：2001-12-01 00:00:00
abstract：:BMP2, like its Drosophila homologue dpp, is an important signaling molecule for specification of cardiogenic mesoderm in vertebrates. Here, we analyzed the time-course of BMP2-requirement for early heart formation in whole chick embryos and in explants of antero-lateral plate mesoderm. Addition of Noggin to explants i...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(99)00311-1
更新日期：2000-03-01 00:00:00
abstract：:The Drosophila fat facets and canoe genes regulate non-neural cell fate decisions during ommatidium formation. We have shown previously that the FAM (fat facets in mouse) de-ubiquitinating enzyme regulates the function of AF-6, (mammalian canoe homologue), in the MDCK epithelial cell line (Taya et al., 1998. The Ras t...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(99)00294-4
更新日期：2000-03-01 00:00:00
abstract：:The Extramacrochaetae (emc) gene encodes a transcription factor with an HLH domain without the basic region involved in interaction with DNA present in other proteins that have this domain. EMC forms heterodimers with bHLH proteins preventing their binding to DNA, acting as a negative regulator. The function of emc is...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00198-1
更新日期：1999-02-01 00:00:00
abstract：:Myogenin and CMD1, the chicken homologue of MyoD, transactivate the promoter of the alpha-subunit of the acetylcholine receptor (AChR) in chicken fibroblasts. The expression of these three genes was followed by in situ hybridization. In two-day-old embryos the CMD1 gene is expressed shortly before the AChR alpha-subun...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(92)90018-f
更新日期：1992-03-01 00:00:00
abstract：:Endothelial to mesenchymal transition (EMT) that occurs during cardiac outflow tract (OFT) development is critical for formation of the semilunar valves. Fibulin-1 (Fbln1) is an extracellular matrix protein that is present at several sites of EMT, including the OFT (i.e., E9.5-10.5). The aim of this study was to deter...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2014.12.005
更新日期：2015-05-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(97)00192-5
更新日期：1998-02-01 00:00:00
abstract：:The Bar homeobox genes play an essential role during nervous system and eye development in Drosophila. We isolated a medaka Bar gene closely related to the Drosophila and mammalian Bar genes. In the medaka embryo, OlBar is expressed from gastrula stages onwards, in a region demarcating the presumptive prosencephalic-m...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(02)00054-0
更新日期：2002-06-01 00:00:00
abstract：:Recent work identified an apoptotic program in gastrulation stage Xenopus embryos (Anderson, J.A., Lewellyn, A.L., Maller, J.L., 1997. Mol. Biol. Cell 8, 1195-1206; Stack, J.H., Newport, J.W., 1997. Development 124, 3185-3195). Here, we characterize in detail this maternal cell death program, which is set up at fertil...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(97)00191-3
更新日期：1997-12-01 00:00:00
abstract：:In a large-scale gene expression screen 1765 randomly picked cDNAs were analyzed by whole-mount in situ hybridization in Xenopus embryos. Two hundred and seventy three unique, differentially expressed genes were identified, 204 of which are novel in Xenopus. Partial DNA sequences and expression patterns were documente...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00115-4
更新日期：1998-10-01 00:00:00
abstract：:Exogenously applied retinoic acid given at the early stages of gastrulation causes abnormal development of the caudal midbrain and anterior hindbrain in vertebrate embryos. We describe the limits of the brain regions that are affected using neuroanatomical criteria in the zebrafish embryo. Analysis of the reticulospin...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(94)00321-d
更新日期：1995-03-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(00)00517-7
更新日期：2001-01-01 00:00:00
abstract：:Using the epidermis-specific cytokeratin 14 promoter to deliver HGF exclusively from epidermal keratinocytes, we have examined the potential of hepatocyte growth factor (HGF) secreted from the normal environment to control morphogenesis. The transgenic mice displayed a significant increase of the number of melanocytes...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(00)00308-7
更新日期：2000-06-01 00:00:00
abstract：:The Fused (Fu) serine-threonine kinase and the Suppressor of fused (Su(fu)) product are part of the Hedgehog (Hh) signaling pathway both in embryos and in imaginal discs. In wing imaginal discs, the Hh signal induces Cubitus interruptus (Ci) accumulation and activates patched (ptc) and decapentaplegic (dpp) expression...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00130-0
更新日期：1998-11-01 00:00:00
abstract：:In the process of cloning murine proteins capable of binding to a regulatory module of the Ncam promoter, we isolated a novel homeobox gene, Barx1, the first vertebrate member of the structural subclass defined by Drosophila BarH1. Here we report its sequence, chromosomal localisation and embryonic expression pattern....
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(94)00343-l
更新日期：1995-05-01 00:00:00
abstract：:We report the expression pattern of a murine homolog of the Xenopus laevis T-box gene Eomesodermin. mEomes expression is first detected in the extra-embryonic ectoderm prior to gastrulation, and persists there until head-fold stages. In the embryo proper, mEomes is expressed throughout the early primitive streak, nasc...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00243-3
更新日期：1999-03-01 00:00:00
abstract：:To understand the mechanisms regulating the tissue non-specific alkaline phosphatase (TNAP) activity during development, we characterized cis-transcriptional regulatory elements. In embryonic cells and tissues, TNAP expression was driven preferentially by the exon 1A (E1A) promoter, one of the two promoters previously...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(96)00524-2
更新日期：1996-06-01 00:00:00
abstract：:In endothelial cells that form capillary-like structures in vitro a variety of genes is upregulated as we have demonstrated previously. In addition to well known genes, we also identified genes never described in endothelial cells before. Here, we report the further characterization of one selected gene called cystein...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(02)00355-6
更新日期：2002-12-01 00:00:00
abstract：:We performed a systematic screen for mutations affecting the trajectory of axons visualized by immunohistochemical staining of Medaka embryos with anti-acetylated tubulin antibody. Among the mutations identified, yanagi (yan) and kazura (kaz) mutations caused specific defects in projection of the posterior lateral lin...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2004.03.032
更新日期：2004-07-01 00:00:00
abstract：:The mouse and human Hox complex consists of 39 genes in four linkage groups (A-D). Although the structure and expression patterns of most of these genes have been reported, the 5' members of the Hox C linkage group have been only partially characterized. Herein we report the primary and genomic structure of the mouse ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(97)00182-2
更新日期：1998-01-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(03)00111-4
更新日期：2002-12-01 00:00:00
abstract：:The adrenergic differentiation of sympathetic neurons is controlled by complex interactions with the embryonic environment. To provide a basis for the experimental analysis of these interactions, the expression of the adrenergic marker enzyme tyrosine hydroxylase (TH) was analyzed by immunohistochemistry and in situ h...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(95)00396-i
更新日期：1995-07-01 00:00:00
abstract：:The scaffolding protein tetraspanin18 (Tspan18) maintains epithelial cadherin-6B (Cad6B) to antagonize chick cranial neural crest epithelial-to-mesenchymal transition (EMT). For migration to take place, Tspan18 must be downregulated. Here, we characterize the role of the winged-helix transcription factor FoxD3 in the ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2014.02.004
更新日期：2014-05-01 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
pub_type： 杂志文章
doi：10.1016/0925-4773(91)90018-2
更新日期：1991-11-01 00:00:00
