Abstract：
:The proper removal of superfluous neurons through apoptosis and subsequent phagocytosis is essential for normal development of the central nervous system (CNS). During Drosophila embryogenesis, a large number of apoptotic neurons are efficiently engulfed and degraded by phagocytic glia. Here we demonstrate that glial proficiency to phagocytose relies on expression of phagocytic receptors for apoptotic cells, SIMU and DRPR. Moreover, we reveal that the phagocytic ability of embryonic glia is established as part of a developmental program responsible for glial cell fate determination and is not triggered by apoptosis per se. Explicitly, we provide evidence for a critical role of the major regulators of glial identity, gcm and repo, in controlling glial phagocytic function through regulation of SIMU and DRPR specific expression. Taken together, our study uncovers molecular mechanisms essential for establishment of embryonic glia as primary phagocytes during CNS development.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Shklyar B,Sellman Y,Shklover J,Mishnaevski K,Levy-Adam F,Kurant Edoi
10.1016/j.ydbio.2014.07.005subject
Has Abstractpub_date
2014-09-15 00:00:00pages
255-269issue
2eissn
0012-1606issn
1095-564Xpii
S0012-1606(14)00341-8journal_volume
393pub_type
杂志文章abstract：:Macronuclei of Tetrahymena thermophila contain a typical H1 which has been shown to be missing from micronuclei. Instead, micronuclei contain three unique polypeptides, alpha, beta, and gamma, which are associated with linker regions of micronuclear chromatin. In this report polyclonal antibodies raised against macron...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(85)90339-2
更新日期：1985-05-01 00:00:00
abstract：:We have investigated the sequential changes of acetylcholine receptor (AChR) distribution on identified Xenopus laevis muscle cells in culture before and after innervation. AChRs on muscle cells were stained with tetramethylrhodamine-conjugated alpha-bungarotoxin and the distribution of AChR clusters was examined on a...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90006-x
更新日期：1984-05-01 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：:Thyroid hormone (TH) induces dramatic skeletal and tissue remodeling of the anuran head and body at metamorphosis. The expression pattern of TH up-regulated genes has been correlated with tissues that either grow or resorb at metamorphosis. Whereas the expression of the thyroid hormone receptors in Xenopus laevis tadp...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.8975
更新日期：1998-11-01 00:00:00
abstract：:Nerve and muscle development was studied in paralysé mutant mice. The mutant phenotype is first recognizable 6-7 days after birth (PN 6-PN 7) as cessation of muscle growth and weakness and incoordination of movement. Mutant animals die between 2 and 3 weeks of age. Muscle fibers from paralysé mutants had a unimodal di...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(89)90213-3
更新日期：1989-03-01 00:00:00
abstract：:The development of neural crest-derived melanocytes, as well as haematopoietic and germ cells, is affected by mutations of the Kit and Mgf genes, which lead to dominant spotting (W) or steel (Sl) phenotypes. Mgf codes for the ligand of the receptor tyrosine kinase encoded by the Kit locus. KitW-v, a point mutation exe...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1997.8738
更新日期：1997-12-01 00:00:00
abstract：:The correct assembly of junction components, such as E-cadherin and beta-catenin, into the zonula adherens is fundamental for the function of epithelia, both in flies and in vertebrates. In C. elegans, however, the cadherin-catenin system is not essential for general adhesion, raising the question as to the genetic ba...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.0113
更新日期：2001-02-01 00:00:00
abstract：:Bullous pemphigoid antisera and monoclonal antibodies to type VII collagen were used to localize hemidesmosomes and anchoring fibrils, respectively, in tissues of developing eyes and healing corneal wounds of New Zealand white rabbits. In the 17-day fetal rabbit eye, both antibodies colocalize to the epithelial-stroma...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90136-4
更新日期：1988-04-01 00:00:00
abstract：:Developmental patterning and growth of the vertebrate digestive and respiratory tracts requires interactions between the epithelial endoderm and adjacent mesoderm. The esophagus is a specialized structure that connects the digestive and respiratory systems and its normal development is critical for both. Shh signaling...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2011.08.024
更新日期：2011-11-15 00:00:00
abstract：:Retinoic acid (RA) affects the response of many cells to growth factors, including the bone morphogenetic proteins (BMPs). The BMPs are members of the TGF-beta, family of growth factors, originally identified by their bone-inducing activities. Their widespread expression suggests many roles other than that in osteogen...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.0275
更新日期：1996-11-01 00:00:00
abstract：:Heart valve structures derived from mesenchymal cells of the endocardial cushions (ECs) are composed of highly organized cell lineages and extracellular matrix. Sox9 is a transcription factor required for both early and late stages of cartilage formation that is also expressed in the developing valves of the heart. Th...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.02.002
更新日期：2007-05-01 00:00:00
abstract：:Notch signaling inhibits hair cell differentiation, based on studies on mice deficient in Notch signaling-related genes and its downstream genes. However, the precise mechanisms of this inhibition are unknown because it is difficult to control the timing and duration of the suppression of Notch signaling. Here, we dev...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.04.035
更新日期：2007-07-01 00:00:00
abstract：:The Id1 and Id3 genes play major roles during cardiac development, despite their expression being confined to non-myocardial layers (endocardium-endothelium-epicardium). We previously described that Id1Id3 double knockout (dKO) mouse embryos die at mid-gestation from multiple cardiac defects, but early lethality precl...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.10.004
更新日期：2011-01-01 00:00:00
abstract：:We recently demonstrated a critical role for two-pore channel type 2 (TPC2)-mediated Ca2+ release during the differentiation of slow (skeletal) muscle cells (SMC) in intact zebrafish embryos, via the introduction of a translational-blocking morpholino antisense oligonucleotide (MO). Here, we extend our study and demon...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2017.03.031
更新日期：2017-05-15 00:00:00
abstract：:We have cloned a partial cDNA of chicken glial cell line-derived neurotrophic factor (GDNF) and systematically examined its expression pattern as well as that of GDNF-binding components (GDNF family receptor alpha-1 and 2: GFRalpha-1 and 2) and a common signal transduction receptor (c-ret protooncogene: RET) during ve...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9543
更新日期：2000-01-01 00:00:00
abstract：:The transforming growth factor-beta (TGF-beta) superfamily contains a variety of growth factors which all share common sequence elements and structural motifs. These proteins are known to exert a wide spectrum of biological responses on a large variety of cell types in both vertebrates and invertebrates. Many of them ...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：
更新日期：2002-10-15 00:00:00
abstract：:Neurons and glia are produced in stereotyped patterns after neuroblast cell division during development of the Drosophila central nervous system. The first cell division of thoracic neuroblast 6-4 (NB6-4T) is asymmetric, giving rise to a glial precursor cell and a neuronal precursor cell. In contrast, abdominal NB6-4 ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9727
更新日期：2000-06-15 00:00:00
abstract：:The sub-division of the posterior-most territory of the neural plate results in the formation of two distinct neural structures, the hindbrain and the spinal cord. Although many of the molecular signals regulating the development of these individual structures have been elucidated, the mechanisms involved in delineati...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2015.12.025
更新日期：2016-02-15 00:00:00
abstract：:We examined the structure, expression, and possible functions of a nanos homologue during gametogenesis and blastogenesis in the colonial ascidian Botryllus primigenus. An approximately 1.3-kb-long cDNA was cloned; it was termed BpNos since the deduced amino acid sequence (288 aa) contained 2 Nanos-like CCHC zinc fing...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.08.023
更新日期：2008-12-01 00:00:00
abstract：:The fate of bacteriophage lambda-DNA was examined after injection into the fertilized eggs of Xenopus laevis. Injection of a large amount of lambda-DNA (ca. 24 ng) into a fertilized Xenopus egg induced the formation around the injected DNA of a giant nucleus-like structure which was surrounded by an apparently normal ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90155-7
更新日期：1986-08-01 00:00:00
abstract：:A gene regulatory network subcircuit comprising the otx, wnt8, and blimp1 genes accounts for a moving torus of gene expression that sweeps concentrically across the vegetal domain of the sea urchin embryo. Here we confirm by mutation the inputs into the blimp1cis-regulatory module predicted by network analysis. Its es...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.10.042
更新日期：2008-01-15 00:00:00
abstract：:The identification of the genes regulating neural progenitor cell (NPC) functions is of great importance to developmental neuroscience and neural repair. Previously, we combined genetic subtraction and microarray analysis to identify genes enriched in neural progenitor cultures. Here, we apply a strategy to further st...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2003.09.003
更新日期：2003-12-15 00:00:00
abstract：:Fibroblast growth factor (FGF) signalling has been implicated in the generation of mesoderm and neural fates in chordate embryos including ascidians and vertebrates. In Ciona, FGF9/16/20 has been implicated in both of these processes. However, in FGF9/16/20 knockdown embryos, notochord fate recovers during later devel...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.08.075
更新日期：2007-02-01 00:00:00
abstract：:Implantation represents a critical step for embryonic development and pregnancy. Its success depends on the complex interplay between a receptive endometrium and a competent embryo. Implantation-related events remain hardly accessible, making implantation a true "black box" in developmental biology. Improved in vitro ...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2020.04.003
更新日期：2020-07-01 00:00:00
abstract：:The origin of resident (noninflammatory) macrophages in vertebrate tissues is still poorly understood. In the zebrafish embryo, we recently described a specific lineage of early macrophages that differentiate in the yolk sac before the onset of blood circulation. We now show that these early macrophages spread in the ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0393
更新日期：2001-10-15 00:00:00
abstract：:Distal-less 3 (DLX3) gene mutations are etiologic for Tricho-Dento-Osseous syndrome. To investigate the in vivo impact of mutant DLX3 on bone development, we established transgenic (TG) mice expressing the c.571_574delGGGG DLX-3 gene mutation (MT-DLX3) driven by a mouse 2.3 Col1A1 promoter. Microcomputed tomographic a...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.10.014
更新日期：2009-01-01 00:00:00
abstract：:The ectoderm of early Xenopus gastrula is competent to become induced to neural tissue, but dorsal ectoderm is more neural competent than ventral ectoderm. It is a tenable, but as yet untested possibility that the higher neural competence of dorsal gastrula ectoderm is dependent on the presence of the dorsal mesoderm....
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(92)90168-g
更新日期：1992-07-01 00:00:00
abstract：:We have compared the ability of uncapacitated, capacitated acrosome intact, and acrosome-reacted hamster sperm to penetrate the cumulus and corona radiata of fresh hamster oocyte-cumulus complexes (OCC) in vitro. This was done using physiological numbers (1-20) of sperm so that cumulus and corona radiata cells did not...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(87)90348-4
更新日期：1987-07-01 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：:We have investigated the ability of growing dictyate oocytes and early preimplantation embryos of the mouse to process extrachromosomal DNA molecules with free ends by intranuclearly microinjecting DNA fragments containing a region of homology of various extent at either the 5' or 3' terminus. Homologous recombination...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2001.0199
更新日期：2001-05-01 00:00:00
