Abstract：
:It is well established that the notochord influences the development of adjacent neural and mesodermal tissue. Involvement of the notochord in the differentiation of the dorsal pancreas has been demonstrated. However, our knowledge of the signals involved in pancreatic development is still incomplete. In order to identify proteins potentially implicated during pancreatic differentiation, we raised and characterized monoclonal antibodies against previously established embryonic pancreatic ductal epithelial cell lines (BUD and RED). Using the MAb 2117, the cell surface antigen 2117 (Ag 2117) was cloned. The predicted sequence for Ag 2117 is the rat homologue of BEN. Initially reported as a protein expressed on epithelial cells of the chicken bursa of Fabricius, BEN is expressed in a variety of tissues during development and described as a marker for the developing central and peripheral chicken nervous systems. A role has been suggested for BEN in the adhesion of stem cells and progenitor cells to the blood-forming tissue microenvironment. In this study, we demonstrate that BEN, initially expressed exclusively in the notochord during the early development of rat, is implicated in pancreatic development. We show that Ag 2117 regulates the pancreatic epithelial cell growth through the ras and Jun kinase pathways. In addition, we demonstrate that Ag 2117 is able to regulate the expression of the transcription factor PDX1, required for insulin gene expression, in embryonic pancreas organ cultures.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Stephan JP,Bald L,Roberts PE,Lee J,Gu Q,Mather JPdoi
10.1006/dbio.1999.9348subject
Has Abstractpub_date
1999-08-15 00:00:00pages
264-77issue
2eissn
0012-1606issn
1095-564Xpii
S0012-1606(99)99348-Xjournal_volume
212pub_type
杂志文章abstract：:The Drosophila ovarian germline stem cells (GSCs) constantly experience self-renewal and differentiation, ensuring the female fertility throughout life. The balance between GSC self-renewal and differentiation is exquisitely regulated by the stem cell niche, the stem cells themselves and systemic factors. Increasing e...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2013.04.015
更新日期：2013-07-15 00:00:00
abstract：:Hox genes can function as key drivers of segment identity, with Hox mutations in Drosophila often resulting in dramatic homeotic transformations. In addition, however, they can serve other essential functions. In mammals, the study of Hox gene roles in development is complicated by the presence of four Hox clusters wi...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2018.03.020
更新日期：2018-06-15 00:00:00
abstract：:Following their birth in olfactory placode, luteinizing hormone-releasing hormone (LHRH)-containing neurons migrate across the developing cribriform plate and form a dispersed population in the mammalian basal forebrain. The present study reveals the colocalization of unique glycoconjugate antigens (detected with mono...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1045
更新日期：1993-02-01 00:00:00
abstract：:Somatic embryogenesis is one of the best examples of the remarkable developmental plasticity of plants, in which committed somatic cells can dedifferentiate and acquire the ability to form an embryo and regenerate an entire plant. In Arabidopsis thaliana, the shoot apices of young seedlings have been reported as an al...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2018.04.023
更新日期：2018-10-01 00:00:00
abstract：:Climate change is multi-faceted, and includes changing concentrations of greenhouse gases in the atmosphere, rising temperatures, changes in precipitation patterns, and increasing frequency of extreme weather events. Here, we focus on the effects of rising atmospheric CO2 concentrations, rising temperature, and drough...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2016.07.023
更新日期：2016-11-01 00:00:00
abstract：:The iris sphincter muscle consists of striated muscle fibers in the adult chicken. The ontogenetic development of this muscle has been studied by immunocytochemistry, from Embryonic Day 7 to the time of hatching. The time course of expression of specific markers of either smooth or striated muscle, i.e., smooth and sk...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1254
更新日期：1993-10-01 00:00:00
abstract：:In the present study, we have investigated the role of tyrosine kinase activity during early retinal development in Xenopus laevis. The protein tyrosine kinase (PTK) inhibitors lavendustin A and genistein were used to determine the possible role of tyrosine kinase activity during retinal development in vivo and in vit...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2003.10.006
更新日期：2004-02-01 00:00:00
abstract：:Chick sensory neurons grow to their correct targets in the hindlimb from the outset during normal development and following various experimental manipulations. This may result not because sensory neurons respond to specific limb-derived cues, but because they interact in some way with motoneurons which are responsive ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90023-0
更新日期：1986-12-01 00:00:00
abstract：:Drosophila melanogaster mature oocytes in ovaries are arrested at metaphase I of meiosis. Eggs that have reached the uterus have released this arrest. It was not known where in the female reproductive tract egg activation occurs and what triggers it. We investigated when and where the egg is activated in Drosophila in...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0246
更新日期：2001-06-15 00:00:00
abstract：:Hox genes encode transcription factors which provide positional information during morphogenesis along the body axis; genetic interaction among Hox genes is thought to be necessary for correct pattern formation. One of the most curious features of the 39 vertebrate Hox genes is that they form four clusters each compos...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9651
更新日期：2000-04-15 00:00:00
abstract：:To examine the role of postsynaptic activity in regulating the rate of neuromuscular synapse elimination, contractile activity of neonatal rabbit soleus muscles was decreased by chronic superfusion of alpha-bungarotoxin (alpha-BGT) over their surfaces. Superfusion was begun at 6 days postnatal and continued for a vari...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/s0012-1606(89)80009-0
更新日期：1989-02-01 00:00:00
abstract：:The NCK adaptor proteins are composed entirely of SH3 and SH2 domains and serve as protein interaction bridges for several receptors during signal transduction events. Here we report the molecular and genetic analysis of the Caenorhabditis elegans nck-1 gene. C. elegans nck-1 encodes two isoforms: NCK-1A and a shorter...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2011.03.019
更新日期：2011-06-01 00:00:00
abstract：:It is known that secreted proteins from the anterior lateral endoderm, FGF8 and BMP2, are involved in mesodermal cardiac differentiation, which determines the first cardiac field, defined by the expression of the earliest specific cardiac markers Nkx-2.5 and Gata4. However, the molecular mechanisms responsible for ear...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2015.07.007
更新日期：2015-10-01 00:00:00
abstract：:We have reported previously that sequence-specific adenylations and deadenylations accompany changes in the translation of maternal mRNA following fertilization of Spisula oocytes (E.T. Rosenthal, T.R. Tansey, and J.V. Ruderman, 1983, J. Mol. Biol. 166, 309-327). The data presented here confirm and extend those observ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(87)90155-2
更新日期：1987-05-01 00:00:00
abstract：:Analysis of 262 transgenic mouse pedigrees suggests that about 30% of the mice produced by microinjection of plasmids into pronuclei are mosaic in the germline. This implies that in these lines integration of the foreign DNA occurred after the first round of chromosomal DNA replication. In mosaics resulting from delay...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90068-0
更新日期：1986-11-01 00:00:00
abstract：:The lizards are evolutionarily the closest vertebrates to humans that demonstrate the ability to regenerate entire appendages containing cartilage, muscle, skin, and nervous tissue. We previously isolated PAX7-positive cells from muscle of the green anole lizard, Anolis carolinensis, that can differentiate into multin...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2017.08.037
更新日期：2018-01-15 00:00:00
abstract：:Initiation of the development of the anterior-posterior axis in the mouse embryo has been thought to take place only when the anterior visceral endoderm (AVE) emerges and starts its asymmetric migration. However, expression of Lefty1, a marker of the AVE, was recently found to initiate before embryo implantation. This...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.06.020
更新日期：2007-09-01 00:00:00
abstract：:Despite 30 years of Hox gene study, we have a remarkably limited knowledge of the downstream target genes that Hox transcription factors regulate to confer regional identity. Here, we have used a microarray approach to identify genes that function downstream of a single vertebrate Hox gene, zebrafish hoxb1a. This gene...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.06.012
更新日期：2007-09-15 00:00:00
abstract：:NK genes are related pan-metazoan homeobox genes. In the fruitfly, NK genes are clustered and involved in patterning various mesodermal derivatives during embryogenesis. It was therefore suggested that the NK cluster emerged in evolution as an ancestral mesodermal patterning cluster. To test this hypothesis, we cloned...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.02.013
更新日期：2008-05-15 00:00:00
abstract：:Pulses of ecdysteroids induce dramatic changes in gene expression that direct the early stages of Drosophila metamorphosis. This gene activity is reflected by the appearance of early and late puffs in the salivary gland polytene chromosomes. Curiously, the early puff genes that have been studied to date are induced by...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1995.1262
更新日期：1995-09-01 00:00:00
abstract：:Conserved from Cnidarians to vertebrates, the dorsoventral (DV) axis is patterned by the Chordin-BMP pathway. However, the functions of the pathway's components are very different in different phyla. By modeling it is shown that many observations can be integrated by the assumption that BMP, acting as an inhibitory co...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2015.05.025
更新日期：2015-09-01 00:00:00
abstract：:A protein complex consisting of Mago Nashi and Tsunagi/Y14 is required to establish the major body axes and for the localization of primordial germ cell determinants during Drosophila melanogaster oogenesis. The Mago Nashi:Tsunagi/Y14 heterodimer also serves as the core of the exon junction complex (EJC), a multiprote...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.06.007
更新日期：2007-08-15 00:00:00
abstract：:The axonal functions that act in the formation of the neuronal network have been shown to occur in close interdependence with the tissue that surrounds the growing axons. However, little is known about the molecular building blocks underlying axonal functions, although more than 400 axonal proteins have been identifie...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90090-4
更新日期：1986-11-01 00:00:00
abstract：:Characterization of the molecular pathways controlling differentiation and proliferation in mammalian hair follicles is central to our understanding of the regulation of normal hair growth, the basis of hereditary hair loss diseases, and the origin of follicle-based tumors. We demonstrate that the proto-oncogene Wnt3,...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.9140
更新日期：1999-03-01 00:00:00
abstract：:Krox-20, originally identified as a member of "immediate-early" genes, plays a crucial role in the formation of two specific segments in the hindbrain during early development of the vertebrate nervous system. Here we cloned a genomic sequence of Xenopus Krox-20 (XKrox-20) and studied functions of a promoter element i...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.08.051
更新日期：2005-01-15 00:00:00
abstract：:Chromatin insulators orchestrate gene transcription during embryo development and cell differentiation by stabilizing interactions between distant genomic sites. Mutations in genes encoding insulator proteins are generally lethal, making in vivo functional analyses of insulator proteins difficult. In Drosophila, howev...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2015.03.024
更新日期：2015-07-01 00:00:00
abstract：:Hair shafts are produced from stem cells located in the bulge. Our knowledge of the genetic pathways regulating cell fate acquisition in the immediate descendents of these stem cells, and fate maintenance in their committed progeny, is still incomplete. One pathway involved in fate maintenance within the hair matrix i...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.11.021
更新日期：2009-02-15 00:00:00
abstract：:Elastic fibers are produced during fetal and neonatal periods, and by maturity elastin expression has ceased. Fetal bovine hyaline chondrocytes acquired an elastogenic phenotype within 24 hr after isolation from the tissue, even though the tissue does not produce elastic fibers or tropoelastin mRNA in vivo. By multipl...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1994.1140
更新日期：1994-05-01 00:00:00
abstract：:The epidermis forms a vital barrier composed of stratified keratinocytes and their differentiated products. One of these products, keratin K10, is critical to epidermal integrity, because mutations in k10 lead to abnormal blistering. For the normal expression of k10, differentiation-associated transcription factors C/...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9460
更新日期：1999-12-01 00:00:00
abstract：:Evolutionary comparisons between Caenorhabditis elegans and the satellite organism Pristionchus pacificus revealed major differences in the regulation of nematode vulva development. For example, Wnt signaling is part of a negative signaling system that prevents vulva formation in P. pacificus, whereas it plays a posit...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.01.034
更新日期：2006-05-01 00:00:00
