Abstract:
:This first study of the onset of spermatogenesis in the sea urchin, Strongylocentrotus purpuratus, was undertaken using individuals reared in the laboratory. Spermatogenesis commences about 11-12 months after metamorphosis in these animals. Bindin message accumulates in late spermatocytes and early spermatids which lie in the luminal germinal layer. Bindin message accumulates later than does the testis-specific histone, H2b-1, suggesting that different classes of genes are sequentially activated during the differentiation of sperm. We correlate the number of bindin mRNA molecules with morphological structure and with quantitative aspects of gonad maturation including the number of nuclei and of sperm. The results suggest that the bindin mRNA concentration in total RNA from testis at different stages of maturation reflects the change in the proportion of expressing cells in the total cell population of the testis.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Cameron RA,Minor JE,Nishioka D,Britten RJ,Davidson EHdoi
10.1016/0012-1606(90)90149-dsubject
Has Abstractpub_date
1990-11-01 00:00:00pages
44-9issue
1eissn
0012-1606issn
1095-564Xpii
0012-1606(90)90149-Djournal_volume
142pub_type
杂志文章abstract::GATA4, a transcription factor expressed in the proximal small intestine but not in the distal ileum, maintains proximal-distal distinctions by multiple processes involving gene repression, gene activation, and cell fate determination. Friend of GATA (FOG) is an evolutionarily conserved family of cofactors whose member...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.07.022
更新日期:2008-10-01 00:00:00
abstract::Hoxa-11 and Hoxd-11 are paralogous genes required for proper development of the vertebral column, the limbs, and the urogenital system. To further explore the functional relationship between these genes, as well as the potential rescue of one function by the other, we have introduced a Hoxd-11-expressing transgene int...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1996.0137
更新日期:1996-06-15 00:00:00
abstract::Defects in heart development are the most common congenital abnormalities in humans, providing a strong incentive to learn more about the underlying causes. Previous studies have implicated the metalloprotease-disintegrins ADAMs (a disintegrin and metalloprotease) 17 and 19 as well as heparin binding EGF-like growth f...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2005.05.004
更新日期:2005-07-15 00:00:00
abstract::Mf1, which encodes a winged-helix/forkhead transcription factor, is the murine homolog of human FKHL7, mutated in individuals with autosomal dominant inherited dysgenesis of the anterior segment of the eye (Axenfeld-Reiger anomaly). Mouse embryos homozygous for null mutations in Mf1 (Mf1(lacZ) and Mf1(ch)) show severe...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1999.9314
更新日期:1999-07-15 00:00:00
abstract::The germinal vesicle (GV) of starfish oocytes stays just beneath the oocyte cortex at the presumptive animal pole during the long period of oogenesis. We subjected oocytes to a centrifugal force field to detach the GV from the cortex. The association between the cortex and the GV persisted and withstood a small amount...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1999.9577
更新日期:2000-02-15 00:00:00
abstract::Proper development of a multicellular organism relies on well-coordinated regulation of cell fate specification, cell proliferation and cell differentiation. The C. elegans postembryonic mesoderm provides a useful system for uncovering factors involved in these processes and for further dissecting their regulatory rel...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2017.06.011
更新日期:2017-09-01 00:00:00
abstract::Normal growth and morphogenesis of the cranial vault reflect a balance between cell proliferation in the sutures and osteogenesis at the margins of the cranial bones. In the clinical condition craniosynostosis, the sutures fuse prematurely as a result of precocious osteogenic differentiation and craniofacial malformat...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2001.0533
更新日期:2002-03-01 00:00:00
abstract::Fertilization-related sperm mitochondrial movement occurs at a rate comparable to other actin-myosin-driven movements and is inhibited by cytochalasin B and N-ethyl maleimide in Ascidia ceratodes sperm. F-actin was demonstrated in the tails and mitochondria using NBD-phallacidin fluorescence. Both actin and myosin wer...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(84)90229-x
更新日期:1984-12-01 00:00:00
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journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(89)90304-7
更新日期:1989-05-01 00:00:00
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journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2016.05.001
更新日期:2016-07-01 00:00:00
abstract::In mammals, two spatially and temporally distinct waves of fiber cell differentiation are crucial steps for normal lens development. In between these phases, an anterior growth zone forms in which progenitor cells migrate circumferentially, terminally exit the cell cycle and initiate differentiation at the lens equato...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2009.01.015
更新日期:2009-04-01 00:00:00
abstract::Runx2-Cbfa1, a Runt transcription factor, plays important roles during skeletal development. It is required for differentiation and function of osteoblasts. In its absence, chondrocyte hypertrophy is severely impaired and there is no vascularization of cartilage templates during skeletal development. These tissue-spec...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2004.03.003
更新日期:2004-06-15 00:00:00
abstract::This work has identified the enzymes involved in the activation and conjugation of the ubiquitin-like protein NED-8 in Caenorhabditis elegans. A C. elegans conjugating enzyme, UBC-12, is highly specific in its ability to utilize NED-8 as a substrate. Immunostaining shows that NED-8 is conjugated in vivo to a major tar...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2000.9847
更新日期:2000-10-01 00:00:00
abstract::Egg yolk phosvitin is one of the most highly phosphorylated extracellular matrix proteins known in nature with unique physico-chemical properties deemed to be critical during ex-vivo egg embryo development. We have utilized our unique live mouse calvarial bone organ culture models under conditions which dissociates th...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2013.06.005
更新日期:2013-09-01 00:00:00
abstract::The formation of endocardial endothelium in quail embryos was investigated using in vivo and in vitro systems. Based on the expression of an quail endothelial marker, QH-1, the initial emergence of endothelial precursor cells in the embryo occurs at stage 7+ (two somites) in the posterior parts of the bilateral heart ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1996.0096
更新日期:1996-04-10 00:00:00
abstract::Neuropilin (previously known as the A5 protein) is a membrane protein identified in Xenopus and is presumed to be involved in the target recognition of the optic nerve fibers. We have isolated cDNAs encoding the chick homologue of neuropilin, using the Xenopus neuropilin cDNA as a hybridization probe. The predicted am...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1995.1208
更新日期:1995-07-01 00:00:00
abstract::Early embryonic cells are capable of acquiring numerous developmental fates until they become irreversibly committed to specific lineages depending on intrinsic determinants and/or regional interactions. From fertilization to gastrulation, such pluripotent cells first increase in number and then turn to undergoing dif...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2019.04.014
更新日期:2019-08-15 00:00:00
abstract::The control of cell division is critical to organogenesis, but how this control is achieved is not fully understood. We found that mutations in bed-3, encoding a BED Zn-finger domain transcription factor, confer a phenotype where a specific set of cell divisions during vulval organogenesis is lost. Unlike general cell...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2009.12.005
更新日期:2010-02-15 00:00:00
abstract::The s-SHIP protein is a shorter isoform of the longer SHIP1 protein and lacks the N-terminal SH2 domain region contained in SHIP1. s-SHIP is expressed in ES cells and in enriched bone marrow stem cells, and may be controlled by a promoter within intron 5 of the ship1 gene. We therefore examined the potential specifici...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2005.04.032
更新日期:2005-07-15 00:00:00
abstract::Treatment of metaphase II-arrested hamster eggs with activators of protein kinase C has been reported to promote resumption of the cell cycle, second polar body emission, and pronucleus formation (G.I. Gallicano, S.M. Schwarz, R.W. McGaughey, and D.G. Capco, 1993, Dev. Biol. 156, 94-106). In contrast, we have not obse...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1995.1233
更新日期:1995-08-01 00:00:00
abstract::The vertebrate pituitary gland is a key endocrine control organ that contains six distinct hormone secreting cell types. In this study, we analyzed the role of direct cell-to-cell Delta-Notch signaling in zebrafish anterior pituitary cell type specification. We demonstrate that initial formation of the anterior pituit...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.04.019
更新日期:2008-07-15 00:00:00
abstract::Neuronal differentiation requires a coordinated intracellular response to diverse extracellular stimuli, but the role of specific signaling mechanisms in regulating this process is still poorly understood. Soluble guanylate cyclases (sGCs), which can be stimulated by diffusible free radical gasses such as nitric oxide...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1998.9066
更新日期:1998-12-01 00:00:00
abstract::The murine homeobox genes Msx-1 and Msx-2 are related to the Drosophila msh gene and are expressed in a variety of tissues during mouse embryogenesis. We now report the developmentally regulated expression of Msx-1 and Msx-2 in the mouse mammary gland and show that their expression patterns point toward significant fu...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1996.0168
更新日期:1996-07-10 00:00:00
abstract::Lens growth involves the proliferation of epithelial cells, followed by their migration to the equator region and differentiation into secondary fiber cells. It is widely accepted that fibroblast growth factor (FGF) signaling is required for the differentiation of lens epithelial cells into crystallin-rich fibers, but...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2012.05.029
更新日期:2012-08-01 00:00:00
abstract::The inactivation of the prolactin receptor gene by homologous recombination has made it possible to investigate the role of prolactin signaling in mammary gland development without resort to ablative surgery of the endocrine glands. In knockout mice lacking the prolactin receptor, mammary development is normal up to p...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1999.9271
更新日期:1999-06-01 00:00:00
abstract::Myoblasts of the L6 rat cell line were grown in Ham's F12 nutrient medium containing 10% fetal calf serum (F12 + FCS). Although the cells were confluent by 6 days in culture, fusion was not observed even if cultures were maintained for 10-14 days. At least 80% of the cells in such confluent unfused cultures were in th...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(84)90192-1
更新日期:1984-04-01 00:00:00
abstract::Connective tissue outgrowths of neonatal muscle onto a substratum of bone matrix differentiate into cartilage in response to a bone morphogenetic protein (BMP). The BMP can be separated from bone matrix by extraction with 4 M guanidine hydrochloride (GuHCl) or degraded in situ by endogenous proteolytic enzymes to deac...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(88)90339-9
更新日期:1988-12-01 00:00:00
abstract::Three unrelated chromosome 2q14.1-14.2 region translocations caused the split hand/foot limb malformation development in humans by an unknown mechanism. Their etiology was described by the autosomal dominant inheritance with incomplete penetrance genetic model although authors stated, "the understanding of the genotyp...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2015.10.013
更新日期:2015-12-01 00:00:00
abstract::Vertebrate pigment cells are derived from neural crest, a tissue that also forms most of the peripheral nervous system and a variety of ectomesenchymal cell types. Formation of pigment cells from multipotential neural crest cells involves a number of common developmental processes. Pigment cells must be specified; the...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2000.9840
更新日期:2000-09-15 00:00:00
abstract::During primary neurogenesis in Xenopus, a cascade of helix--loop--helix (HLH) transcription factors regulates neuronal determination and differentiation. While XNeuroD functions at a late step in this cascade to regulate neuronal differentiation, the factors that carry out terminal differentiation are still unknown. W...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2001.0230
更新日期:2001-05-15 00:00:00