Abstract:
:Reproductive plasticity is the ability of an animal to modulate its reproductive functions in response to environmental changes. For example, Caenorhabditis elegans, a free-living nematode, can adjust the onsets of oogenesis and embryogenesis under harsh environmental conditions, including starvation. However, the molecular mechanisms used to perceive and translate environmental signals into reproductive functional adjustments remain largely uncharacterized. We discovered that in C. elegans, the glutamate receptor homolog MGL-1 initiated reproductive plasticity in response to starvation. A genetic analysis of the mutant gene, mgl-1(tm1811), suggested that starvation delayed the onsets of oogenesis and embryogenesis via MGL-1. Cell-specific rescues of mgl-1 deletion mutants, which used transgenic lines designed to express MGL-1 in different neurons (e.g., RMD, AIA, AIY, and NSM), suggested that only AIY-rescued animals exhibited normal delays in oogenesis and embryogenesis equivalent to those of wild-type animals, suggesting recovery. Furthermore, in AIY neurons, MGL-1 appears to use neuropeptide signaling, rather than glutamate, to translate starvation stimuli into delayed oogenesis and embryogenesis. Our findings, which reveal molecular linkages between starvation signals and reproductive alterations, may provide a basis for understanding energy reallocation mechanisms, as the mgl-1 deletion mutant exhibited more severe reductions in lifespan and fat accumulation than did wild-type animals under starvation conditions. Taken together, MGL-1 is the molecular driver underlying the translation of starvation signals to reproduction plasticity in an AIY neuron-specific manner.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Jeong H,Paik YKdoi
10.1016/j.ydbio.2017.08.014subject
Has Abstractpub_date
2017-10-01 00:00:00pages
80-89issue
1eissn
0012-1606issn
1095-564Xpii
S0012-1606(17)30490-6journal_volume
430pub_type
杂志文章abstract::Xenopus laevis is among the few species that are capable of fully regenerating a lost lens de novo. This occurs upon removal of the lens, when secreted factors from the retina are permitted to reach the cornea epithelium and trigger it to form a new lens. Although many studies have investigated the retinal factors tha...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2013.12.036
更新日期:2014-02-15 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::Cleft palate is one of the most common craniofacial congenital defects in humans. It is associated with multiple genetic and environmental risk factors, including mutations in the genes encoding signaling molecules in the sonic hedgehog (Shh) pathway, which are risk factors for cleft palate in both humans and mice. Ho...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2018.07.003
更新日期:2018-09-01 00:00:00
abstract::Acidic fibroblast growth factor (aFGF) and basic fibroblast growth factor (bFGF) are present in high levels in most areas of the embryonic rodent brain. To begin to understand the role of these growth factors in brain development, the effects of aFGF and bFGF on dissociated cell cultures prepared from embryonic and ne...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(92)90143-5
更新日期:1992-08-01 00:00:00
abstract::Early mammalian embryogenesis is controlled by mechanisms governing the balance between pluripotency and differentiation. The expression of early lineage-specific genes can vary significantly between species, with implications for developmental control and stem cell derivation. However, the mechanisms involved in patt...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2012.12.008
更新日期:2013-03-01 00:00:00
abstract::Previous work has documented the importance of BMPs in eye development. Loss-of-function studies in mice, with targeted deletions in either the Bmp7 or Bmp4 genes, have shown that these molecules are critical for early eye development. On the basis of the asymmetry in the dorsal-ventral expression patterns of several ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/s0012-1606(02)00115-x
更新日期:2003-04-01 00:00:00
abstract::In Drosophila, wing hairs are aligned in a distally oriented, parallel array. The frizzled pathway determines proximal-distal cell polarity in the wing; however, in frizzled pathway mutants, wing hairs remain parallel. How wing hairs align has not been determined. We have demonstrated a novel role for the septate junc...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2004.07.040
更新日期:2004-11-15 00:00:00
abstract::While Wnt signaling is known to be involved in early steps of neural crest development, the mechanism remains unclear. Because Wnt signaling is able to posteriorize anterior neural tissues, neural crest induction by Wnts has been proposed to be an indirect consequence of posteriorization of neural tissues rather than ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2004.12.016
更新日期:2005-03-01 00:00:00
abstract::Rho GTPases control signal transduction pathways that link cell surface receptors to a variety of intracellular responses. They are best known as regulators of the actin cytoskeleton, but in addition they control cell polarity, gene expression, microtubule dynamics and vesicular trafficking. Through these diverse func...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2003.06.003
更新日期:2004-01-01 00:00:00
abstract::The GRAM domain was found in glucosyltransferases, myotubularins and other membrane-associated proteins. So far, functions for majority of these proteins are yet to be uncovered. In order to address the evolutionary and functional significance of this family members, we have performed a comprehensive investigation on ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2007.11.031
更新日期:2008-02-15 00:00:00
abstract::Embryonic development involves a series of cell adhesive interactions that provide mechanical and instructive information required for morphogenesis. The ADAMs family of membrane-anchored proteins, containing a disintegrin and metalloprotease domain, is well suited for participating in such developmental events. They ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1996.8458
更新日期:1997-02-15 00:00:00
abstract::Optimal maturation of oocytes and successful development of preimplantation embryos is essential for reproduction. We performed DNA microarray analyses of ovarian transcripts and identified glial cell line-derived neurotrophic factor (GDNF) secreted by cumulus, granulosa, and theca cells as an ovarian factor stimulate...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2007.12.029
更新日期:2008-03-01 00:00:00
abstract::Although communications between mammalian oocytes and their surrounding granulosa cells mediated by the Kit-Kit ligand (KL, or stem cell factor, SCF) system have been proven to be crucial for follicular development, Kit downstream signaling pathways in mammalian oocytes are largely unknown. In this study, by using ova...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2005.02.013
更新日期:2005-05-15 00:00:00
abstract::The GATA family of transcription factors are known to play multiple critical roles in vertebrate developmental processes, including erythropoiesis, endoderm formation and cardiogenesis. There have been no previous demonstrations of a functional role for any GATA family member being associated with musculoskeletal deve...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2007.12.001
更新日期:2008-02-15 00:00:00
abstract::Limb buds in the limbless chick begin to form normally but fail to form an AER and ultimately degenerate. Wnt7a and LMX-1, which are restricted to the dorsal half of a normal limb bud, are expressed throughout the ectoderm and mesenchyme of the mutant buds, respectively. Engrailed-1, normally expressed in ventral limb...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1996.0265
更新日期:1996-11-01 00:00:00
abstract::Embryonic morphogenesis relies on the intrinsic ability of cells, often through remodeling the cytoskeleton, to shape epithelial tissues during development. Epithelial invagination is an example of morphogenesis that depends on this remodeling but the cellular mechanisms driving arrangement of cytoskeletal elements ne...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2020.02.014
更新日期:2020-06-01 00:00:00
abstract::Recent studies with amoebae of the Myxomycetes Didymium iridis and Physarum polycephalum reveal that competence to undergo sexual fusion or to differentiate to plasmodia apogamically can be induced by a diffusible factor. Suspension cultures of Didymium amoebae have proven to be a good source of the inducer activity. ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/0012-1606(84)90337-3
更新日期:1984-06-01 00:00:00
abstract::We have identified cDNA clones encoding a testis-specific poly(A) polymerase, termed TPAP, a candidate molecule responsible for cytoplasmic polyadenylation of preexisting mRNAs in male haploid germ cells. The TPAP gene was most abundantly expressed coincident with the additional elongation of mRNA poly(A) tails in rou...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2000.9894
更新日期:2000-12-01 00:00:00
abstract::The categorical data set is an important data class in experimental biology and contains data separable into several mutually exclusive categories. Unlike measurement of a continuous variable, categorical data cannot be analyzed with methods such as the Student's t-test. Thus, these data require a different method of ...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2010.08.018
更新日期:2010-12-01 00:00:00
abstract::Most metazoans are able to grow beyond a few hundred cells and to support differentiated tissues because they elaborate multicellular, epithelial tubes that are indispensable for nutrient and gas exchange. To identify and characterize the cellular behaviors and molecular mechanisms required for the morphogenesis of ep...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2015.10.034
更新日期:2016-01-01 00:00:00
abstract::Male germline stem cells (GSCs) in Drosophila melanogaster divide asymmetrically by orienting the mitotic spindle with respect to the niche, a microenvironment that specifies stem cell identity. The spindle orientation is prepared during interphase through stereotypical positioning of the centrosomes. We recently demo...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2011.10.010
更新日期:2012-01-01 00:00:00
abstract::The murine allantois will become the umbilical artery and vein of the chorioallantoic placenta. In previous studies, growth and differentiation of the allantois had been elucidated in whole embryos. In this study, the extent to which explanted allantoises grow and differentiate outside of the conceptus was investigate...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2001.0227
更新日期:2001-05-15 00:00:00
abstract::The elongation of embryo and tissue is a key morphogenetic event in embryogenesis and organogenesis. Notochord, a typical chordate organ, undergoes elongation to perform its regulatory roles and to form the structural support in the embryo. Notochord elongation is morphologically similar across all chordates, but asci...
journal_title:Developmental biology
pub_type: 杂志文章,评审
doi:10.1016/j.ydbio.2018.11.009
更新日期:2019-04-15 00:00:00
abstract::Normal animal development requires accurate cell divisions, not only in the early stages of rapid embryonic cleavages, but also in later developmental stages. The Caenorhabditis elegans unc-85 gene is implicated only in cell divisions that occur post-embryonically, primarily in terminal neuronal lineages. Variable pos...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2008.04.013
更新日期:2008-07-01 00:00:00
abstract::The development of the mammalian neocortex requires radial and tangential migration of cells. Radial migration of differentiated neurons from the ventricular zone (VZ) is well established. It is hypothesised that an earlier phase of tangential migration of mitotically active cells lays down a widespread periodically s...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2003.11.006
更新日期:2004-03-01 00:00:00
abstract::Wnt signaling pathways have been demonstrated to play important roles in controlling tissue patterning and cell proliferation. In the gastrointestinal tract, mutations that lead to activation of the canonical Wnt pathway through beta-catenin result in familial and sporadic colon cancers. The downstream transcription f...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/s0012-1606(03)00185-4
更新日期:2003-07-15 00:00:00
abstract::The Drosophila larval central brain contains about 10,000 differentiated neurons and 200 scattered neural progenitors (neuroblasts), which can be further subdivided into ~95 type I neuroblasts and eight type II neuroblasts per brain lobe. Only type II neuroblasts generate self-renewing intermediate neural progenitors ...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1016/j.ydbio.2011.10.020
更新日期:2012-01-01 00:00:00
abstract::We investigated the influence of the growth surface on the direction of Xenopus spinal neurite growth in the presence of a dc electric field of physiological magnitude. The direction of galvanotropism was determined by the substratum; neurites grew toward the negative electrode (cathode) on untreated Falcon tissue cul...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1998.9039
更新日期:1998-11-15 00:00:00
abstract::Proper spatial expression of the wingless (wg) gene in the Drosophila embryonic epidermis is crucial to intrasegmental patterning. Single cell wide wg expression is initiated at the blastoderm stage in response to combinatorial regulation by the pair rule genes. Later, during gastrulation, when the epidermal expressio...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.1995.1243
更新日期:1995-08-01 00:00:00
abstract::Carbohydrates have been shown to mediate or modulate a number of important events in the development of the nervous system; however, there is little evidence that they participate directly in the development of synapses. One carbohydrate structure that is likely to be important in synaptic development of the neuromusc...
journal_title:Developmental biology
pub_type: 杂志文章
doi:10.1006/dbio.2001.0530
更新日期:2002-02-01 00:00:00