Abstract：
:Monoclonal antibodies have been generated to determine the fate of sperm-specific surface components of the sea urchin, Arbacia punctulata, subsequent to gamete fusion. Monoclonal antibody-7 (MAB-7) reacted with two polypeptide bands having apparent molecular masses of 33 and 35 kDa derived from the sperm plasma membrane; similar reactivity was not detected in egg preparations. Eggs and oocytes were prepared for electron microscopy at periodic intervals following insemination and reacted with MAB-7 followed by antimouse antibodies conjugated to colloidal gold. In samples prepared 30 to 60 sec postinsemination (PI) colloidal gold was confined to the surface of fused sperm with only a few gold particles associated with the egg plasma membrane. In later samples (2-10 min PI) label was present on increasingly greater areas of the egg/oocyte surface away from the site of gamete fusion so that by 20 min PI particles were located along one hemisphere of inseminated eggs and oocytes. These results demonstrate the incorporation of sperm plasma membrane polypeptides and their intermixing with egg plasmalemmal components subsequent to gamete membrane fusion. From measurements of labeled oocytes at different times PI, the diffusion coefficient for sperm surface polypeptides detected by MAB-7 was estimated to be 0.7 to 2.4 x 10(-9) cm2/sec.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Longo FJdoi
10.1016/s0012-1606(89)80036-3subject
Has Abstractpub_date
1989-01-01 00:00:00pages
37-43issue
1eissn
0012-1606issn
1095-564Xpii
S0012-1606(89)80036-3journal_volume
131pub_type
杂志文章abstract：:Spermatogenesis is initiated by the interaction of germ cells and somatic cells in seminiferous tubules. We used cDNA microarrays and representational difference analysis to identify genes that are expressed in the testis of the jsd/jsd mutant mouse, which contains only type A spermatogonial germ cells and Sertoli cel...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2002.0671
更新日期：2002-06-15 00:00:00
abstract：:Only a subset of cleavage stage blastomeres in the Xenopus embryo is competent to contribute cells to the retina; ventral vegetal blastomeres do not form retina even when provided with neuralizing factors or transplanted to the most retinogenic position of the embryo. These results suggest that endogenous maternal fac...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.01.040
更新日期：2007-05-01 00:00:00
abstract：:We have used an in vitro model to investigate the relationship between cell proliferation, cell maturation, and intercellular junctional changes that are seen during normal liver development. Chick liver fragments of embryonic stages 21, 28, and 39 were grown in organ culture in Medium 199 with 10% bovine serum albumi...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(83)90265-8
更新日期：1983-09-01 00:00:00
abstract：:The zebrafish fin is an excellent system to study the mechanisms of dermal bone patterning. Fin rays are segmented structures that form successive bifurcations both during ontogenesis and regeneration. Previous studies showed that sonic hedgehog (shha) may regulate regenerative bone patterning based on its expression ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2012.03.008
更新日期：2012-05-15 00:00:00
abstract：:Stimulation of epithelial cell cycling by the neuropeptide head activator was analyzed in Hydra magnipapillata and compared with the action of head activator on bud formation and tentacle formation during head regeneration. The results obtained indicate that head activator treatment stimulates epithelial cell division...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.8491
更新日期：1997-03-01 00:00:00
abstract：:The vertebral column is derived from somites, which are transient segments of the paraxial mesoderm that are present in developing vertebrates. The strict spatial and temporal regulation of somitogenesis is of crucial developmental importance. Signals such as Wnt and FGF play roles in somitogenesis, but details regard...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.12.034
更新日期：2007-04-15 00:00:00
abstract：:The stability of sexual phenotype was examined in a single clone of Hydra oligactis males maintained at two culture temperatures, 18 and 22 degrees C. At these temperatures animals of this species do not reproduce sexually, but reproduce asexually by budding, and males and females are morphologically indistinguishable...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90311-8
更新日期：1986-10-01 00:00:00
abstract：:Notch pathway is crucial for stem/progenitor cell maintenance, growth and differentiation in a variety of tissues. Using a transgenic cell ablation approach, we found in our previous study that cells expressing Notch1 are crucial for prostate early development and re-growth. Here, we further define the role of Notch s...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2005.11.009
更新日期：2006-02-01 00:00:00
abstract：:BMPRIA is a receptor for bone morphogenetic proteins with high affinity for BMP2 and BMP4. Mouse embryos lacking Bmpr1a fail to gastrulate, complicating studies on the requirements for BMP signaling in germ layer development. Recent work shows that BMP4 produced in extraembryonic tissues initiates gastrulation. Here w...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.01.048
更新日期：2004-06-01 00:00:00
abstract：:The prostate undergoes branching morphogenesis dependent on paracrine interactions between the prostatic epithelium and the urogenital mesenchyme. To identify cell-surface molecules that function in this process, monoclonal antibodies raised against epithelial cell-surface antigens were screened for antigen expression...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0223
更新日期：2001-05-01 00:00:00
abstract：:Mouse sperm surface galactosyltransferase (GalTase) mediates fertilization by binding to its appropriate glycoconjugate substrate in the egg zona pellucida. GalTase is present throughout all stages of spermatogenesis, during which time it redistributes within the plasma membrane from a uniform, diffuse distribution on...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90072-3
更新日期：1988-01-01 00:00:00
abstract：:5' HoxD genes are required for the correct formation of limb skeletal elements. Hoxd13, the most 5'-located HoxD gene, is important for patterning the most distal limb region, and its mutation causes human limb malformation syndromes. The mechanisms underlying the control of developmental processes by Hoxd13, and by H...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.02.048
更新日期：2008-05-15 00:00:00
abstract：:The Mix/Bix family of paired-like homeobox genes encode evolutionarily conserved, sequence specific, DNA-binding transcription factors that have been implicated in the co-ordination of gene expression, axis formation and cell fate determination during gastrulation in vertebrates. When mutated, these genes give rise to...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2012.04.033
更新日期：2012-07-15 00:00:00
abstract：:Acquisition of limb-forming ability by discrete regions of the lateral plate of the chick embryo is thought to depend on a signaling cascade moving sequentially from the area of Hensen's node to the somitic mesoderm, the intermediate mesoderm, and then to the prospective limb-forming regions of the lateral plate (Step...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1997.8646
更新日期：1997-08-15 00:00:00
abstract：:Retinoic acid (RA) signaling is required for normal development of multiple organs. However, little is known about how RA influences the initial stages of lung development. Here, we used a combination of genetic, pharmacological and explant culture approaches to address this issue, and to investigate how signaling by ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2005.10.045
更新日期：2006-03-01 00:00:00
abstract：:The pattern of innervation in 13 chicken hindlimb muscles was studied at various stages of development in order to examine the mechanisms which regulate its formation. The pattern of innervation was visualized by examining the distribution of fiber types within each muscle. It was found that the fiber type which a myo...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(83)90080-5
更新日期：1983-05-01 00:00:00
abstract：:Cis-regulatory modules (CRMs) control spatiotemporal gene expression patterns in embryos. While measurement of quantitative CRM activities has become efficient, measurement of spatial CRM activities still relies on slow, one-by-one methods. To overcome this bottleneck, we have developed a high-throughput method that c...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2017.01.010
更新日期：2017-02-15 00:00:00
abstract：:The origin of the avian cardiovascular system from the primitive streak has been mapped by the construction of quail/chick transplantation chimeras, the use of QH-1 (an antiquail endothelial/endocardial cell marker), and injections of a vital fluorescent dye (DiI) into the primitive streak. Our studies reveal that the...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1276
更新日期：1993-10-01 00:00:00
abstract：:Recent data suggest that dental cells utilize the evolutonarily conserved Notch-mediated intercellular signaling pathway to regulate their fates. Here we report on the expression and regulation of Delta1, a transmembrane ligand of the Notch receptors, during mouse odontogenesis. Delta1 is weakly expressed in dental ep...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.9092
更新日期：1998-12-15 00:00:00
abstract：:In many non-mammalian vertebrates, adult dentitions result from cyclical rounds of tooth regeneration wherein simple unicuspid teeth are replaced by more complex forms. Therefore and by contrast to mammalian models, the numerical majority of vertebrate teeth develop shape during the process of replacement. Here, we ex...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2013.02.007
更新日期：2013-05-15 00:00:00
abstract：:Bicaudal-D (Bic-D) is required for the transport of determinant mRNAs and proteins to the presumptive oocyte, an essential step in the differentiation of the oocyte. Bic-D protein contains four well-defined heptad repeat domains characteristic of intermediate filament proteins. We characterized the ovarian phenotypes ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0170
更新日期：2001-04-01 00:00:00
abstract：:Receptor protein tyrosine phosphatases (RPTPs) have been shown to play key roles in regulating axon guidance and synaptogenesis. HmLAR2, one of two closely related LAR-like RPTPs in the embryonic leech, is expressed in a few central neurons and in a unique segmentally-iterated peripheral cell, the comb cell (CC). Here...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.05.522
更新日期：2008-08-01 00:00:00
abstract：:NK-2-class homeobox genes have been identified in a variety of metazoans, from sponges to arthropods and vertebrates, and have been shown to play roles in a variety of cell and tissue specifications. Here we describe the characterization of the NK-2 homolog CnNK-2 from Hydra vulgaris, a freshwater cnidarian. CnNK-2 ex...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.0321
更新日期：1996-12-15 00:00:00
abstract：:Gastrulation is the first major morphogenetic movement in development and requires dynamic regulation of cell adhesion and the cytoskeleton. Caenorhabditis elegans gastrulation begins with the migration of the two endodermal precursors, Ea and Ep, from the surface of the embryo into the interior. Ea/Ep migration provi...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.05.507
更新日期：2010-08-15 00:00:00
abstract：:We wish to understand how organ-specific structures assemble during embryonic development. In the present paper, we consider what determines the subapical position of the terminal web in the intestinal cells of the nematode Caenorhabditis elegans. The terminal web refers to the organelle-depleted, intermediate filamen...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.01.003
更新日期：2004-04-15 00:00:00
abstract：:Mammalian eggs remain arrested at metaphase of the second meiotic division (metII) for an indeterminate time before fertilization. During this period, which can last several hours, the continued attachment of sister chromatids is thought to be achieved by inhibition of the protease separase. Separase is known to be in...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.06.036
更新日期：2008-09-15 00:00:00
abstract：:In the vertebrate head, crucial parts of the sense organs and sensory ganglia develop from special regions, the cranial placodes. Despite their cellular and functional diversity, they arise from a common field of multipotent progenitors and acquire distinct identity later under the influence of local signalling. Here ...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2012.06.028
更新日期：2012-10-01 00:00:00
abstract：:This investigation provides the first systematic determination of the cellular and molecular progression of vocal fold (VF) epithelium development in a murine model. We define five principal developmental events that constitute the progression from VF initiation in the embryonic anterior foregut tube to fully differen...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2014.12.037
更新日期：2015-03-15 00:00:00
abstract：:Although the formation and maintenance of epithelial tubes are essential for the viability of multicellular organisms, our understanding of the molecular and cellular events coordinating tubulogenesis is relatively limited. Here, we focus on the activities of Ribbon, a novel BTB-domain containing nuclear protein, in t...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.05.541
更新日期：2008-08-01 00:00:00
abstract：:In vertebrates, the Müllerian duct elongates along the Wolffian duct, a mesonephric structure that is required for Müllerian duct formation. Recently, several genes required for initial Müllerian duct formation have been identified. However, the precise mechanism of Müllerian duct elongation remains to be elucidated. ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.10.027
更新日期：2009-01-15 00:00:00
