Abstract:
VIDEO ABSTRACT:The precise connectivity of inputs and outputs is critical for cerebral cortex function; however, the cellular mechanisms that establish these connections are poorly understood. Here, we show that the secreted molecule Sonic Hedgehog (Shh) is involved in synapse formation of a specific cortical circuit. Shh is expressed in layer V corticofugal projection neurons and the Shh receptor, Brother of CDO (Boc), is expressed in local and callosal projection neurons of layer II/III that synapse onto the subcortical projection neurons. Layer V neurons of mice lacking functional Shh exhibit decreased synapses. Conversely, the loss of functional Boc leads to a reduction in the strength of synaptic connections onto layer Vb, but not layer II/III, pyramidal neurons. These results demonstrate that Shh is expressed in postsynaptic target cells while Boc is expressed in a complementary population of presynaptic input neurons, and they function to guide the formation of cortical microcircuitry.
journal_name
Neuronjournal_title
Neuronauthors
Harwell CC,Parker PR,Gee SM,Okada A,McConnell SK,Kreitzer AC,Kriegstein ARdoi
10.1016/j.neuron.2012.02.009subject
Has Abstractpub_date
2012-03-22 00:00:00pages
1116-26issue
6eissn
0896-6273issn
1097-4199pii
S0896-6273(12)00136-5journal_volume
73pub_type
杂志文章相关文献
NEURON文献大全abstract::Since the early days of research into language and the brain, word meaning was assumed to be processed in specific brain regions, which most modern neuroscientists localize to the left temporal lobe. Here we use event-related fMRI to show that action words referring to face, arm, or leg actions (e.g., to lick, pick, o...
journal_title:Neuron
pub_type: 临床试验,杂志文章
doi:10.1016/s0896-6273(03)00838-9
更新日期:2004-01-22 00:00:00
abstract::In this issue of Neuron, Espuny-Camacho et al. (2017) generate a humanized Alzheimer's disease (AD) model that reveals species-specific vulnerability of human neurons to AD pathology. This model provides key insights for disease mechanism and therapeutic discovery for AD. ...
journal_title:Neuron
pub_type: 杂志文章,评审
doi:10.1016/j.neuron.2017.02.044
更新日期:2017-03-08 00:00:00
abstract::It has recently been found that caspases not only function in apoptosis, but are also crucial for nonapoptotic processes such as NMDA receptor-dependent long-term depression (LTD) of synaptic transmission. It remains unknown, however, how caspases are activated and how neurons escape death in LTD. Here we show that ca...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2011.04.004
更新日期:2011-05-26 00:00:00
abstract::Serotonergic neurons are thought to play a role in depression and obsessive compulsive disorder. However, their functional transmitter repertoire is incompletely known. To investigate this repertoire, intracellular recordings were obtained from 132 cytochemically identified rat mesopontine serotonergic neurons that ha...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(94)90283-6
更新日期:1994-02-01 00:00:00
abstract::Oxytocin (OT) release by axonal terminals onto the central nucleus of the amygdala exerts anxiolysis. To investigate which subpopulation of OT neurons contributes to this effect, we developed a novel method: virus-delivered genetic activity-induced tagging of cell ensembles (vGATE). With the vGATE method, we identifie...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2019.04.029
更新日期:2019-07-03 00:00:00
abstract::Autism spectrum disorder (ASD) may arise from increased ratio of excitatory to inhibitory neurotransmission in the brain. Many pharmacological treatments have been tested in ASD, but only limited success has been achieved. Here we report that BTBR T(+)Itpr3(tf)/J (BTBR) mice, a model of idiopathic autism, have reduced...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2014.01.016
更新日期:2014-03-19 00:00:00
abstract::Cortical synaptic circuitry develops rapidly in the second postnatal week, simultaneous with experience-dependent turnover of dendritic spines. To relate the emergence of sensory maps to synaptogenesis, we recorded synaptic potentials evoked by whisker deflection in layer 2/3 neurons from postnatal day (P) 12 to 20. A...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/s0896-6273(01)00360-9
更新日期:2001-08-02 00:00:00
abstract::Perceptual decisions require the transformation of raw sensory inputs into cortical representations suitable for stimulus discrimination. One of the best-known examples of this transformation involves the middle temporal area (MT) of the primate visual cortex. Area MT provides a robust representation of stimulus motio...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2017.06.024
更新日期:2017-07-19 00:00:00
abstract::Two properties were found to distinguish neuronal from muscle nicotinic acetylcholine receptors (nAChRs). First, neuronal nAChRs have a greater Ca2+ permeability. The high Ca2+ flux through neuronal nAChRs activates a Ca(2+)-dependent Cl- conductance, and the Ca2+ to Cs+ permeability ratio (PCa/PCs) is 7 times greater...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(92)90114-s
更新日期:1992-01-01 00:00:00
abstract::L-Glutamate is regarded as the major excitatory neurotransmitter in the mammalian CNS. However, whether the released transmitter originates from a cytosolic pool or is discharged from synaptic vesicles by exocytosis (vesicle hypothesis) remains controversial. A problem with the general acceptance of the vesicle hypoth...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(89)90240-7
更新日期:1989-12-01 00:00:00
abstract::Application of Clostridium difficile toxin B, an inhibitor of the Rho family of GTPases, at the Aplysia sensory to motor neuron synapse blocks long-term facilitation and the associated growth of new sensory neuron varicosities induced by repeated pulses of serotonin (5-HT). We have isolated cDNAs encoding Aplysia Rho,...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2005.01.044
更新日期:2005-03-24 00:00:00
abstract::We have used the caged calcium compound DM-nitrophen to investigate the kinetics of calcium-dependent secretion in bovine chromaffin cells. Perfusion with partially calcium-loaded nitrophen often caused a loading transient--slow secretion for up to 1 min due to displacement of Ca2+ by cytoplasmic Mg2+. Flash photolysi...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(93)90238-m
更新日期:1993-01-01 00:00:00
abstract::Using somatic cell nuclear transfer, Hazen et al. (2016) examined clonally expanded single neurons for mutations and found ∼100 mutations from a variety of classes. Post-mitotic mutations in individual neurons represent an exploratory direction for finding fundamental origins of neurodegeneration. ...
journal_title:Neuron
pub_type: 评论,杂志文章
doi:10.1016/j.neuron.2016.02.042
更新日期:2016-03-16 00:00:00
abstract::Gene transcription is the process by which the genetic codes of organisms are read and interpreted as a set of instructions for cells to divide, differentiate, migrate, and mature. As cells function in their respective niches, transcription further allows mature cells to interact dynamically with their external enviro...
journal_title:Neuron
pub_type: 杂志文章,评审
doi:10.1016/j.neuron.2018.10.013
更新日期:2018-10-24 00:00:00
abstract::Altered microRNA profiles have been implicated in human brain disorders. However, the functional contribution of individual microRNAs to neuronal development and function is largely unknown. Here, we report biological functions for miR-19 in adult neurogenesis. We determined that miR-19 is enriched in neural progenito...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2016.05.034
更新日期:2016-07-06 00:00:00
abstract::The ERK MAP kinase signaling cascade plays critical roles in brain development, learning, memory, and cognition. It has recently been appreciated that mutation or deletion of elements within this signaling pathway leads to developmental syndromes in humans that are associated with impaired cognitive function and autis...
journal_title:Neuron
pub_type: 杂志文章,评审
doi:10.1016/j.neuron.2009.01.001
更新日期:2009-01-29 00:00:00
abstract::Glial cells respond to neuronal activation and release neuroactive molecules (termed "gliotransmitters") that can affect synaptic activity and modulate plasticity. In this study, we used molecular genetic tools, ultra-structural microscopy, and electrophysiology to assess the role of brain-derived neurotrophic factor ...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2016.09.031
更新日期:2016-11-23 00:00:00
abstract::Nervous system injury and disease have broad effects on the functional connectivity of the nervous system, but how injury signals are spread across neural circuits remains unclear. We explored how axotomy changes the physiology of severed axons and adjacent uninjured "bystander" neurons in a simple in vivo nerve prepa...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2020.11.012
更新日期:2020-12-02 00:00:00
abstract::Olfaction is a vitally important sense for all animals. There are striking similarities between species in the organization of the olfactory pathway, from the nature of the odorant receptor proteins, to perireceptor processes, to the organization of the olfactory CNS, through odor-guided behavior and memory. These com...
journal_title:Neuron
pub_type: 杂志文章,评审
doi:10.1016/j.neuron.2005.10.022
更新日期:2005-11-03 00:00:00
abstract::Two types of ryanodine receptors, channels for Ca2+ release from intracellular stores, are known. We detected the skeletal muscle type only in cerebellum by immunoblot analysis of microsomes and partially purified proteins. The cardiac muscle type was found in all parts of the mouse brain. Immunohistochemical study sh...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(92)90071-k
更新日期:1992-12-01 00:00:00
abstract::The vertebrate ventral midbrain contains 3-4 x 10(4) dopaminergic neurons that influence motor activity, emotional behavior, and cognition. Recently, glial cell line-derived neurotrophic factor (GDNF) was shown to be a potent survival factor for these dopaminergic neurons in culture. However, many midbrain dopaminergi...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(94)90062-0
更新日期:1994-11-01 00:00:00
abstract::Gene expression may occur in unexpected ectopic sites when diverse genetic elements are juxtaposed as chimeric genes in transgenic mice. To determine the specific contribution of the promoter and reporter gene in ectopic expression, we have analyzed the expression of 14 different fusion genes in transgenic mice. Chime...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(88)90079-7
更新日期:1988-06-01 00:00:00
abstract::In recent years, nerve growth factor (NGF) has gained attention as a potential therapeutic agent for Alzheimer's disease (AD). To study the expression of NGF and its homologs, brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3), postmortem samples of hippocampus from AD and control donors were examined ...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/0896-6273(91)90273-3
更新日期:1991-11-01 00:00:00
abstract::There has been a surge of interest in how inhibitory neurons influence the output of local circuits in the brain. In this issue of Neuron, Scholl et al. (2015) provide a compelling argument for what one class of inhibitory neurons actually does. ...
journal_title:Neuron
pub_type: 评论,杂志文章
doi:10.1016/j.neuron.2015.06.041
更新日期:2015-07-15 00:00:00
abstract::Activity is known to be important for the refinement of neural connections in the developing brain. In this issue of Neuron, Hanson and Landmesser provide evidence that GABA-dependent spontaneous bursting of motor neurons in the embryonic spinal cord is required for the correct execution of an early axon pathfinding d...
journal_title:Neuron
pub_type: 评论,杂志文章,评审
doi:10.1016/j.neuron.2004.08.027
更新日期:2004-09-02 00:00:00
abstract::The brain is a vulnerable metabolic organ and must adapt to different fuel conditions to sustain function. Nerve terminals are a locus of this vulnerability, but how they regulate ATP synthesis as fuel conditions vary is unknown. We show that synapses can switch from glycolytic to oxidative metabolism, but to do so, t...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2019.11.020
更新日期:2020-02-19 00:00:00
abstract::Fragile X-associated tremor/ataxia syndrome (FXTAS) is a recently described neurodegenerative disorder of older adult carriers of premutation alleles (60-200 CGG repeats) in the fragile X mental retardation gene (FMR1). It has been proposed that FXTAS is an RNA-mediated neurodegenerative disease caused by the titratio...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2007.07.021
更新日期:2007-08-16 00:00:00
abstract::The molecular specification of central circuits that coordinate expression of innate behaviors in response to specific sensory cues from the environment remains a puzzle. In this issue of Neuron, Choi, Dong, and colleagues used expression profiling and genetic axonal tracing to visualize a hypothalamic point of conver...
journal_title:Neuron
pub_type: 评论,杂志文章
doi:10.1016/j.neuron.2005.05.001
更新日期:2005-05-19 00:00:00
abstract::Recently, we found that electrical stimulation of motor cortex caused monkeys to make coordinated, complex movements. These evoked movements were arranged across the cortex in a map of spatial locations to which the hand moved. We suggest that some of the subdivisions previously described within primary motor and prem...
journal_title:Neuron
pub_type: 杂志文章,评审
doi:10.1016/s0896-6273(02)01003-6
更新日期:2002-10-24 00:00:00
abstract::Spontaneous fMRI fluctuations are organized in large-scale spatiotemporal structures, or resting-state networks (RSN). However, it is unknown how task performance affects RSN dynamics. We use MEG to measure slow (∼0.1 Hz) coherent fluctuations of band-limited power (BLP), a robust correlate of RSN, during rest and mov...
journal_title:Neuron
pub_type: 杂志文章
doi:10.1016/j.neuron.2013.06.022
更新日期:2013-08-21 00:00:00