Abstract:
:In neurons, transmembrane proteins are targeted to dendrites in vesicles that traffic solely within the somatodendritic compartment. How these vesicles are retained within the somatodendritic domain is unknown. Here, we use a novel pulse-chase system, which allows synchronous release of exogenous transmembrane proteins from the endoplasmic reticulum to follow movements of post-Golgi transport vesicles. Surprisingly, we found that post-Golgi vesicles carrying dendritic proteins were equally likely to enter axons and dendrites. However, once such vesicles entered the axon, they very rarely moved beyond the axon initial segment but instead either halted or reversed direction in an actin and Myosin Va-dependent manner. In contrast, vesicles carrying either an axonal or a nonspecifically localized protein only rarely halted or reversed and instead generally proceeded to the distal axon. Thus, our results are consistent with the axon initial segment behaving as a vesicle filter that mediates the differential trafficking of transport vesicles.
journal_name
Cell Repjournal_title
Cell reportsauthors
Al-Bassam S,Xu M,Wandless TJ,Arnold DBdoi
10.1016/j.celrep.2012.05.018subject
Has Abstractpub_date
2012-07-26 00:00:00pages
89-100issue
1issn
2211-1247pii
S2211-1247(12)00157-Xjournal_volume
2pub_type
杂志文章相关文献
Cell Reports文献大全abstract::Alzheimer's disease (AD) is the most common form of dementia, impairing cognitive and motor functions. One of the pathological hallmarks of AD is neuronal loss, which is not reflected in mouse models of AD. Therefore, the role of neuronal death is still uncertain. Here, we used a Drosophila AD model expressing a secre...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.11.098
更新日期:2018-12-26 00:00:00
abstract::High-throughput imaging has led to an explosion of observations about cell-size homeostasis across the kingdoms of life. Among bacteria, "adder" behavior-in which a constant size increment appears to be added during each cell cycle-is ubiquitous, while various eukaryotes show other size-homeostasis behaviors. Since in...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.107992
更新日期:2020-08-11 00:00:00
abstract::To survive adverse and ever-changing environmental conditions, an organism must be able to adapt. It has long been established that the cellular reaction to stress includes the upregulation of genes coding for specific stress-responsive factors. In the present study, we demonstrate that during the early steps of the h...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2013.11.019
更新日期:2013-12-12 00:00:00
abstract::The Piwi-piRNA pathway is well known for its germline function, yet its somatic role remains elusive. We show here that Piwi is required autonomously not only for germline stem cell (GSC) but also for somatic cyst stem cell (CySC) maintenance in the Drosophila testis. Reducing Piwi activity in the testis caused defect...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.06.004
更新日期:2015-07-07 00:00:00
abstract::The role of CTCF in stabilizing long-range interactions between chromatin sites essential for maintaining nuclear architecture is well established. Most of these interactions involve recruitment of the cohesin complex to chromatin via CTCF. We find that CTCF also interacts with the centromeric protein CENP-E both in v...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.08.005
更新日期:2015-09-08 00:00:00
abstract::RAS family GTPases contribute directly to the regulation of type I phosphoinositide 3-kinases (PI3Ks) via RAS-binding domains in the PI3K catalytic p110 subunits. Disruption of this domain of p110α impairs RAS-mutant-oncogene-driven tumor formation and maintenance. Here, we test the effect of blocking the interaction ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.12.003
更新日期:2018-12-26 00:00:00
abstract::It has been proposed that sleep's contribution to memory consolidation is to reactivate prior encoded information. To elucidate the neural mechanisms carrying reactivation-related mnemonic information, we investigated whether content-specific memory signatures associated with memory reactivation during wakefulness reo...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.09.037
更新日期:2018-10-09 00:00:00
abstract::Dicistrovirus intergenic region internal ribosomal entry sites (IGR IRESs) do not require initiator tRNA, an AUG codon, or initiation factors and jumpstart translation from the middle of the elongation cycle via formation of IRES/80S complexes resembling the pre-translocation state. eEF2 then translocates the [codon-a...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.108476
更新日期:2020-12-08 00:00:00
abstract::Working memory is mediated by the coordinated activation of frontal and parietal cortices occurring in the theta and alpha frequency ranges. Here, we test whether electrically stimulating frontal and parietal regions at the frequency of interaction is effective in modulating working memory. We identify working memory ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2019.10.072
更新日期:2019-11-26 00:00:00
abstract::Governance of protein phosphorylation by kinases and phosphatases constitutes an essential regulatory network in eukaryotic cells. Network dysregulation leads to severe consequences and is often a key factor in disease pathogenesis. Previous studies revealed multiple roles for protein phosphorylation and pathway struc...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2019.10.034
更新日期:2019-11-12 00:00:00
abstract::Zika virus (ZIKV) is an emerging, mosquito-borne flavivirus responsible for recent epidemics across the Americas, and it is closely related to dengue virus (DENV). Here, we study samples from 46 DENV-naive and 43 DENV-immune patients with RT-PCR-confirmed ZIKV infection at early-acute, late-acute, and convalescent tim...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.107569
更新日期:2020-04-28 00:00:00
abstract::A major challenge in biology is determining how evolutionarily novel characters originate; however, mechanistic explanations for the origin of new characters are almost completely unknown. The evolution of pregnancy is an excellent system in which to study the origin of novelties because mammals preserve stages in the...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2014.12.052
更新日期:2015-02-03 00:00:00
abstract::GABAergic synapses in brain circuits generate inhibitory output signals with submillisecond latency and temporal precision. Whether the molecular identity of the release sensor contributes to these signaling properties remains unclear. Here, we examined the Ca2+ sensor of exocytosis at GABAergic basket cell (BC) to Pu...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.12.067
更新日期:2017-01-17 00:00:00
abstract::Although DNA methylation is commonly invoked as a mechanism for transcriptional repression, the extent to which it actively silences transcription factor (TF) occupancy sites in vivo is unknown. To study the role of DNA methylation in the active modulation of TF binding, we quantified the effect of DNA methylation dep...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.07.024
更新日期:2015-08-18 00:00:00
abstract::Most aging hypotheses assume the accumulation of damage, resulting in gradual physiological decline and, ultimately, death. Avoiding protein damage accumulation by enhanced turnover should slow down the aging process and extend the lifespan. However, lowering translational efficiency extends rather than shortens the l...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.07.088
更新日期:2016-09-13 00:00:00
abstract::Characterization of the cardiac cellulome, the network of cells that form the heart, is essential for understanding cardiac development and normal organ function and for formulating precise therapeutic strategies to combat heart disease. Recent studies have reshaped our understanding of cardiac cellular composition an...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.12.072
更新日期:2018-01-16 00:00:00
abstract::Developing strategies that promote the resolution of vascular inflammation and atherosclerosis remains a major therapeutic challenge. Here, we show that exosomes produced by naive bone marrow-derived macrophages (BMDM-exo) contain anti-inflammatory microRNA-99a/146b/378a that are further increased in exosomes produced...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.107881
更新日期:2020-07-14 00:00:00
abstract::Plasmodium parasites infect the liver and replicate inside hepatocytes before they invade erythrocytes and trigger clinical malaria. Analysis of host signaling pathways affected by liver-stage infection could provide critical insights into host-pathogen interactions and reveal targets for intervention. Using protein l...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2013.02.010
更新日期:2013-03-28 00:00:00
abstract::G-protein-coupled receptors (GPCRs) constitute the largest superfamily of cell-surface signaling proteins. However, mechanisms underlying their surface targeting and sorting are poorly understood. Here, we screen the Rab family of small GTPases in the surface transport of multiple GPCRs. We find that manipulation of R...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2017.10.011
更新日期:2017-10-24 00:00:00
abstract::Adipose tissue fibrosis development blocks adipocyte hypertrophy and favors ectopic lipid accumulation. Here, we show that adipose tissue fibrosis is associated with obesity and insulin resistance in humans and mice. Kinetic studies in C3H mice fed a high-fat diet show activation of macrophages and progression of fibr...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2014.03.062
更新日期:2014-05-22 00:00:00
abstract::Exercise has been argued to enhance cognitive function and slow progressive neurodegenerative disease. Although exercise promotes neurogenesis, oligodendrogenesis and adaptive myelination are also significant contributors to brain repair and brain health. Nonetheless, the molecular details underlying these effects rem...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.09.030
更新日期:2016-10-11 00:00:00
abstract::Loss of metabolic homeostasis is a hallmark of aging and is commonly characterized by the deregulation of adaptive signaling interactions that coordinate energy metabolism with dietary changes. The mechanisms driving age-related changes in these adaptive responses remain unclear. Here, we characterize the deregulation...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2013.08.004
更新日期:2013-09-26 00:00:00
abstract::The number of essential telomerase components in the active ribonucleoprotein (RNP) has important implications for its mechanism of action yet is by and large unknown. We report that two differentially tagged TLC1 RNAs endogenously expressed in a heterozygous diploid and simultaneously detected via multi-color fluores...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.06.045
更新日期:2015-07-21 00:00:00
abstract::Schwann cells (SCs) myelinate peripheral neurons to promote the rapid conduction of action potentials, and the process of myelination is known to be regulated by signals from axons to SCs. Given that SC mitochondria are one of the potential regulators of myelination, we investigated whether SC mitochondria are regulat...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2015.08.039
更新日期:2015-09-29 00:00:00
abstract::Ischemic stroke is a well-recognized disease of aging, yet it is unclear how the age-dependent vulnerability occurs and what are the underlying mechanisms. To address these issues, we perform a comprehensive RNA-seq analysis of aging, ischemic stroke, and their interaction in 3- and 18-month-old mice. We assess differ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.107777
更新日期:2020-06-16 00:00:00
abstract::Inflammasome activation is associated with numerous diseases. However, in vivo detection of the activated inflammasome complex has been limited by a dearth of tools. We have developed transgenic mice that ectopically express the fluorescent adaptor protein, apoptosis-associated speck-like protein containing a caspase ...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2016.06.011
更新日期:2016-07-12 00:00:00
abstract::The lipid transporters of the phosphatidylinositol transfer protein (PITP) family dictate phosphoinositide compartmentalization, and specific phosphoinositides play crucial roles in signaling cascades, membrane traffic, ion channel regulation, and actin dynamics. Although PITPs are enriched in the brain, their physiol...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.07.012
更新日期:2018-08-07 00:00:00
abstract::Drosophila neuroblasts (NBs) have emerged as a model for stem cell biology that is ideal for genetic analysis but is limited by the lack of cell-type-specific gene expression data. Here, we describe a method for isolating large numbers of pure NBs and differentiating neurons that retain both cell-cycle and lineage cha...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2012.07.008
更新日期:2012-08-30 00:00:00
abstract::Cytoplasmic long non-coding RNAs have been shown to act at many different levels to control post-transcriptional gene expression, although their role in translational control is poorly understood. Here, we show that lnc-31, a non-coding RNA required for myoblast proliferation, promotes ROCK1 protein synthesis by stabi...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2018.03.101
更新日期:2018-04-17 00:00:00
abstract::The JAK/STAT1 pathway is generally activated by cytokines, providing essential antiviral defense. Here, we identify that STAT1 activation is independent of cytokines and JAKs at the early infection stage of some viruses, including influenza A virus (IAV). Instead, STAT1 is activated mainly through spleen tyrosine kina...
journal_title:Cell reports
pub_type: 杂志文章
doi:10.1016/j.celrep.2020.108627
更新日期:2021-01-19 00:00:00