Abstract：
:There has been rapid progress recently in the identification of signalling pathways regulating tooth development. It has become apparent that signalling networks involved in Drosophila development and development of mammalian organs such as the limb are also used in tooth development. Teeth are epithelial appendages formed in the oral region of vertebrates and their early developmental anatomy resembles that of other appendages, such as hairs and glands. The neural crest origin of tooth mesenchyme has been confirmed and recent evidence suggests that specific combinations of homeobox genes expressed in the neural crest cells may regulate the types of teeth and their patterning. Signalling molecules in the Shh, FGF, BMP and Wnt families appear to regulate the early steps of tooth morphogenesis and some transcription factors associated with these pathways have been shown to be necessary for tooth development. Several of the conserved signals are also transiently expressed in the enamel knots in the dental epithelium. The enamel knots are associated with the characteristic epithelial folding morphogenesis which is responsible for the development of tooth shape and it is currently believed that the enamel knots function as signalling centres regulating tooth shape development. The developing tooth has proven to be an excellent model in studies of the molecular basis of patterning and morphogenesis of organs and it can be expected that continuing studies will rapidly increase the understanding of these mechanisms.
journal_name
Mech Devjournal_title
Mechanisms of developmentauthors
Thesleff I,Sharpe Pdoi
10.1016/s0925-4773(97)00115-9subject
Has Abstractpub_date
1997-10-01 00:00:00pages
111-23issue
2eissn
0925-4773issn
1872-6356pii
S0925-4773(97)00115-9journal_volume
67pub_type
杂志文章,评审abstract：:Egr1 is a highly conserved zinc finger protein which plays important roles in many aspects of vertebrate development and in the adult. The cDNA coding for zebrafish Egr1 was obtained and its expression pattern was examined during zebrafish embryogenesis using whole-mount in situ hybridization. Egr1 mRNA is first detec...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(02)00283-6
更新日期：2002-10-01 00:00:00
abstract：:The normal embryogenesis of marine animals is typically confined to a species-specific range of temperatures. Within that temperature range development results in a consistent, or canalized, phenotype, whereas above and below the range abnormal phenotypes are produced. This study reveals a high temperature threshold, ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2019.04.002
更新日期：2019-06-01 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：: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
pub_type： 杂志文章
doi：10.1016/s0925-4773(02)00183-1
更新日期：2002-09-01 00:00:00
abstract：:CD44, the major cell-surface receptor for hyaluronate, is expressed on many cell types to mediate different functions including cell activation, homing and adhesion. The early pattern of CD44 expression was determined in the avian embryo by using a specific monoclonal antibody in whole-mount and tissue sections. CD44 ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(00)00347-6
更新日期：2000-08-01 00:00:00
abstract：:We have used whole mount in situ hybridization to analyze the pattern of expression of the gene Endo 16 in S. purpuratus embryos. The mRNA is first detectable at 18 h post-fertilization in the cytoplasm of blastomeres derived from the Veg2 6th cleavage tier. The number of Endo 16 positive cells increases gradually thr...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(93)90001-e
更新日期：1993-08-01 00:00:00
abstract：:Active repression of gene expression mediated by unliganded nuclear receptors plays crucial roles in early development of vertebrates. N-CoR (nuclear receptor co-repressor) is the first identified co-repressor that can repress retinoic acid (RA) inducible gene transcription in the absence of RA. Previously, N-CoR was ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2009.09.001
更新日期：2009-10-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00173-7
更新日期：1998-12-01 00:00:00
abstract：:Wnt-4 signaling plays a critical role in kidney development and is associated with the epithelial conversion of the metanephric mesenchyme. Furthermore, secreted Frizzled-related proteins (sFRPs) that can bind Wnts are normally expressed in the developing metanephros, and function in other systems as modulators of Wnt...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(01)00282-9
更新日期：2001-04-01 00:00:00
abstract：:Sexual reproduction in the ciliate Tetrahymena follows a complex developmental program involving the sequential regulation of dozens of genes. Genes that are up-regulated during post-zygotic development in Tetrahymena were isolated by subtractive hybridization. Anlagen stage induced gene 1 (ASI1) encodes a 2.8 kb tran...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(02)00259-9
更新日期：2002-10-01 00:00:00
abstract：:We describe the expression of three Runt-related RUNX genes (previously termed AML, Cbfa, or Pebp2alpha) Runx1 and Runx3 during the development of teeth and other craniofacial tissues and compare them to Runx2 expression reported earlier. All three genes were expressed in mesenchymal condensates. Runx1 was expressed i...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(03)00101-1
更新日期：2002-12-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00067-7
更新日期：1998-06-01 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：:Four genes - deltaA, deltaB, deltaC and deltaD - coding for homologues of the Notch ligand Delta have been discovered in zebrafish (Haddon et al., 1998b). We report here the cDNA sequence and expression pattern of deltaC. Its closest relatives are deltaB and Xenopus X-Delta-2. Unlike deltaA, deltaB, and deltaD, deltaC...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(99)00231-2
更新日期：2000-01-01 00:00:00
abstract：:We have characterised the transdifferentiation of human HepG2 (hepatoma) cells to pancreatic cells following introduction of an activated version of the pancreatic transcription factor Pdx1 (XlHbox8-VP16). The following questions are addressed: (1) are all types of pancreatic cells produced? (2) is the requirement for...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2005.01.001
更新日期：2005-06-01 00:00:00
abstract：:ActR-I is a type I serine/threonine kinase receptor which has been shown to bind activin and bone morphogenetic proteins (BMPs). To study the function of ActR-I, we have generated novel monoclonal antibodies that specifically recognize the extracellular domain of mouse ActR-I. We examined the level of ActR-I protein d...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(99)00320-2
更新日期：2000-03-01 00:00:00
abstract：:NK-2 class homeobox genes are candidate patterning and lineage regulators in diverse organisms. We report here the embryonic expression pattern of murine member, Nkx2-6. In keeping with its vertebrate relatives, Nkx2-6 was transcribed in ventrolateral embryonic structures. Expression was first detected at E8.0 in endo...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(98)00037-9
更新日期：1998-04-01 00:00:00
abstract：:Mouse embryos lacking Gsc and Dkk1 function display severe deficiencies in craniofacial structures which are not found in either Dkk1 homozygous null or Gsc homozygous null mutant embryos. Loss of Gsc has a dosage-related effect on the severity of head truncation phenotype in Dkk1 heterozygous embryos. The synergistic...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2006.10.001
更新日期：2007-02-01 00:00:00
abstract：:We studied the expression of MUL, a gene encoding a novel member of the RING-B-Box-Coiled Coil family of zinc finger proteins that underlies the human inherited disorder, Mulibrey nanism. In early human and mouse embryogenesis MUL is expressed in dorsal root and trigeminal ganglia, liver and in epithelia of multiple t...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(01)00491-9
更新日期：2001-10-01 00:00:00
abstract：:Blood vessel maturation, which is characterized by the investment of vascular smooth muscle cells (vSMCs) around developing blood vessels, begins when vessels remodel into a hierarchy of proximal arteries and proximal veins that branch into smaller distal capillaries. The ultimate result of maturation is formation of ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2019.02.002
更新日期：2019-04-01 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：:Proper metazoan mesoderm development requires the function of a basic helix-loop-helix (bHLH) transcription factor, Twist. Twist-containing dimers regulate the expression of target genes by binding to E box promoter elements containing the site CANNTG. In Caenorhabditis elegans, CeTwist functions in a subset of mesode...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2007.01.005
更新日期：2007-05-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(97)00654-0
更新日期：1997-02-01 00:00:00
abstract：:Gastrulation in vertebrates is a highly dynamic process driven by convergent extension movements of internal mesodermal cells, under the regulatory activity of the Spemann-Mangold or gastrula organizer. In a large-scale screen for genes expressed in the organizer, we have isolated a novel gene, termed Xmc, an acronym ...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(01)00664-5
更新日期：2002-04-01 00:00:00
abstract：:We report the characterization of a zebrafish DnaJ-like protein, homologue to the human Hsp40 protein hdj1, that we named zf-Hsp40. We have studied its expression during fin regeneration and we show that zf-Hsp40 mRNA level is drastically increased in all ray segments beneath the regenerated part, or blastema, in resp...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/s0925-4773(00)00478-0
更新日期：2000-12-01 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：:The sex determining gene, Sry, determines the sex of the organism by initiating development of a testis rather than an ovary from the cells of the bipotential gonad. In the 10 years since the discovery of Sry, new genes and cellular pathways that operate in the establishment of the gonadal primordium and the initiatio...
journal_title：Mechanisms of development
pub_type： 杂志文章,评审
doi：10.1016/s0925-4773(99)00327-5
更新日期：2000-03-15 00:00:00
abstract：:The full length sequence of the Xenopus integrin alpha 5 subunit is reported. Analysis of cloned cDNA fragments reveals that alternative polyadenylation of alpha 5 mRNA occurs in the embryo. Furthermore, a variant form of the alpha 5 mRNA is expressed which encodes an integrin alpha 5 subunit with a truncated cytoplas...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/0925-4773(94)00335-k
更新日期：1995-04-01 00:00:00
abstract：:Cortactin is a Src substrate that interacts with F-actin and can stimulate actin polymerization by direct interaction with the Arp2/3 complex. We have isolated complete loss-of-function mutants of the single Drosophila cortactin gene. Mutants are viable and fertile, showing that cortactin is not an essential gene. How...
journal_title：Mechanisms of development
pub_type： 杂志文章
doi：10.1016/j.mod.2003.10.003
更新日期：2004-01-01 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
pub_type： 杂志文章
doi：10.1016/s0925-4773(00)00357-9
更新日期：2000-07-01 00:00:00
