Abstract:
:Recording of identified neuronal network activity using genetically encoded calcium indicators (GECIs) requires labeling that is cell type-specific and bright enough for the detection of functional signals. However, specificity and strong expression are often not achievable using the same promoter. Here we present a combinatorial approach for targeted expression and single-cell-level quantification in which a weak promoter is used to drive trans-amplification under a strong general promoter. We demonstrated this approach using recombinant adeno-associated viruses (rAAVs) to deliver the sequence of the GECI D3cpv in the mouse cerebellar cortex. Direct expression under the human synapsin promoter (hSYN) led to high levels of expression (50-100 μM) in five interneuron types of the cerebellar cortex but not in Purkinje cells (PCs) (≤10 μM), yielding sufficient contrast to allow functional signals to be recorded from somata and processes in awake animals using two-photon microscopy. When the hSYN promoter was used to drive expression of the tetracycline transactivator (tTA), a second rAAV containing the bidirectional TET promoter (P(tet)bi) could drive strong D3cpv expression in PCs (10-300 μM), enough to allow reliable complex spike detection in the dendritic arbor. An amplified approach should be of use in monitoring neural processing in selected cell types and boosting expression of optogenetic probes. Additionally, we overcome cell toxicity associated with rAAV injection and/or local GECI overexpression by combining the virus injection with systemic pre-injection of hyperosmotic D-mannitol, and by this double the time window for functional imaging.
journal_name
Front Neural Circuitsjournal_title
Frontiers in neural circuitsauthors
Kuhn B,Ozden I,Lampi Y,Hasan MT,Wang SSdoi
10.3389/fncir.2012.00049subject
Has Abstractpub_date
2012-07-31 00:00:00pages
49issn
1662-5110journal_volume
6pub_type
杂志文章abstract::The olfactory system has a unique capacity for recovery from peripheral damage. After injury to the olfactory epithelium (OE), olfactory sensory neurons (OSNs) regenerate and re-converge on target glomeruli of the olfactory bulb (OB). Thus far, this process has been described anatomically for only a few defined popula...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2013.00207
更新日期:2014-01-07 00:00:00
abstract::Recent advances in imaging tools are inspiring zebrafish researchers to tackle ever more ambitious questions in the neurosciences. Behaviorally fundamental conserved neural networks can now be potentially studied using zebrafish from a brain-wide scale to molecular resolution. In this perspective, we offer a roadmap b...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章,评审
doi:10.3389/fncir.2013.00076
更新日期:2013-04-24 00:00:00
abstract:BACKGROUND:Major depressive disorder (MDD) is a public health problem worldwide. There is increasing interest in using non-invasive therapies such as repetitive transcranial magnetic stimulation (rTMS) to treat MDD. However, the changes induced by rTMS on neural circuits remain poorly characterized. The present study a...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2016.00050
更新日期:2016-07-29 00:00:00
abstract::Spike-timing dependent plasticity (STDP) is a biologically constrained unsupervised form of learning that potentiates or depresses synaptic connections based on the precise timing of pre-synaptic and post-synaptic firings. The effects of on-going STDP on the topology of evolving model neural networks were assessed in ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2013.00070
更新日期:2013-04-18 00:00:00
abstract::Neuronal activity is dominated by synaptic inputs from excitatory or inhibitory neural circuits. With the development of in vivo patch-clamp recording, especially in vivo voltage-clamp recording, researchers can not only directly measure neuronal activity, such as spiking responses or membrane potential dynamics, but ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章,评审
doi:10.3389/fncir.2015.00023
更新日期:2015-05-22 00:00:00
abstract::Homeostatic regulation of REM sleep drive, as measured by an increase in the number of REM sleep transitions, plays a key role in neuronal and behavioral plasticity (i.e., learning and memory). Deficits in REM sleep homeostatic drive (RSHD) are implicated in the development of many neuropsychiatric disorders. Yet, the...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2017.00063
更新日期:2017-09-14 00:00:00
abstract::Genetic labeling of neurons with a specific response feature is an emerging technology for precise dissection of brain circuits that are functionally heterogeneous at the single-cell level. While immediate early gene mapping has been widely used for decades to identify brain regions which are activated by external sti...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章,评审
doi:10.3389/fncir.2014.00037
更新日期:2014-04-23 00:00:00
abstract::Local field potentials (LFPs) in cortex reflect synchronous fluctuations in the synaptic activity of local populations of neurons. The power of high frequency (>30 Hz) oscillations in LFPs is locked to the phase of low frequency (<30 Hz) oscillations, an effect known as phase-amplitude coupling (PAC). While PAC has be...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2015.00082
更新日期:2015-12-22 00:00:00
abstract::Cortical sensory systems are active with rich patterns of activity during sleep and under light anesthesia. Remarkably, this activity shares many characteristics with those present when the awake brain responds to sensory stimuli. We review two specific forms of such activity: slow-wave activity (SWA) in the adult bra...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章,评审
doi:10.3389/fncir.2016.00103
更新日期:2016-12-21 00:00:00
abstract::Focal cortical dysplasias (FCDs) are a common cause of brain seizures and are often associated with intractable epilepsy. Here we evaluated aberrant brain neurophysiology in an in vivo mouse model of FCD induced by neonatal freeze lesions (FLs) to the right cortical hemisphere (near S1). Linear multi-electrode arrays ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2016.00093
更新日期:2016-11-10 00:00:00
abstract::Research efforts over the past decades have unraveled both genetic and environmental factors, which contribute to the development of autism spectrum disorders (ASD). It is, to date, largely unknown how different underlying causes result in a common phenotype. However, the individual course of development and the diffe...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2019.00006
更新日期:2019-02-22 00:00:00
abstract::The delay eyeblink conditioning (EBC) is a cerebellum-dependent type of associative motor learning. However, the exact roles played by the various cerebellar synapses, as well as the underlying molecular mechanisms, remain to be determined. It is also unclear whether long-term potentiation (LTP) or long-term depressio...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2013.00180
更新日期:2013-11-15 00:00:00
abstract::Acetylcholine and the activation of muscarinic receptors influence the activity of neural networks generating locomotor behavior in the mammalian spinal cord. Using electrical stimulations of the ventral commissure, we show that commissural muscarinic (CM) depolarizations could be induced in lumbar motoneurons. We pro...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2011.00015
更新日期:2011-11-04 00:00:00
abstract::The ability of light to cause pain is paradoxical. The retina detects light but is devoid of nociceptors while the trigeminal sensory ganglia (TG) contain nociceptors but not photoreceptors. Melanopsin-expressing intrinsically photosensitive retinal ganglion cells (ipRGCs) are thought to mediate light-induced pain but...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2016.00060
更新日期:2016-08-10 00:00:00
abstract::Gamma-amino butyric acid (GABA) is the major inhibitory neurotransmitter that is known to be synthesized and released from GABAergic neurons in the brain. However, recent studies have shown that not only neurons but also astrocytes contain a considerable amount of GABA that can be released and activate GABA receptors ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章,评审
doi:10.3389/fncir.2014.00141
更新日期:2014-12-17 00:00:00
abstract::The primary (S1) and secondary (S2) somatosensory cortices project to several trigeminal sensory nuclei. One putative function of these corticofugal projections is the gating of sensory transmission through the trigeminal principal nucleus (Pr5), and some have proposed that S1 and S2 project differentially to the spin...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2015.00053
更新日期:2015-09-30 00:00:00
abstract::Recent studies using primary neuronal cultures have revealed important roles of the microRNA pathway in the regulation of neuronal development and morphology. For example, miR-134 is involved in dendritogenesis and spine development in hippocampal neurons by regulating local mRNA translation in dendrites. The in vivo ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/neuro.04.016.2009
更新日期:2010-01-12 00:00:00
abstract::CORTICAL GABAERGIC INTERNEURONS IN RODENTS ORIGINATE IN THREE SUBCORTICAL REGIONS: the medial ganglionic eminence (MGE), the lateral/caudal ganglionic eminence (LGE/CGE), and the preoptic area (POA). Each of these neuroepithelial precursor domains contributes different interneuron subtypes to the cortex. Neuronal NOS ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2012.00065
更新日期:2012-09-24 00:00:00
abstract::"Dye-coupling", whole-mount immunohistochemistry for gap junction channel protein connexin 35 (Cx35), and freeze-fracture replica immunogold labeling (FRIL) reveal an abundance of electrical synapses/gap junctions at glutamatergic mixed synapses in the 14th spinal segment that innervates the adult male gonopodium of W...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2014.00066
更新日期:2014-06-26 00:00:00
abstract::In drug users, drug-related cues alone can induce dopamine release in the dorsal striatum. Instructive cues activate inputs to the striatum from both dopaminergic and cholinergic neurons, which are thought to work together to support motor learning and motivated behaviors. Imbalances in these neuromodulatory influence...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2014.00057
更新日期:2014-05-28 00:00:00
abstract::Two-photon imaging has become a useful tool for optical monitoring of neural circuits, but it requires high laser power and serial scanning of each pixel in a sample. This results in slow imaging rates, limiting the measurements of fast signals such as neuronal activity. To improve the speed and signal-to-noise ratio ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/neuro.04.006.2009
更新日期:2009-07-06 00:00:00
abstract::How do local circuits in the inferior colliculus (IC) process and transform spectral and temporal sound information? Using a four-tetrode array we examined the functional properties of the IC and metrics of its micro circuitry by recording neural activity from neighboring single neurons in the cat. Spectral and tempor...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2012.00062
更新日期:2012-09-27 00:00:00
abstract::We have made use of the δ subunit-selective allosteric modulator DS2 (4-chloro-N-[2-(2-thienyl)imidazo[1,2-a]pyridine-3-yl benzamide) to assay the contribution of δ-GABAARs to tonic and phasic conductance changes in the cerebellum, thalamus and neocortex. In cerebellar granule cells, an enhancement of the tonic conduc...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2013.00203
更新日期:2013-12-23 00:00:00
abstract::Methods of functional connectivity are applied ubiquitously in studies involving non-invasive whole-brain signals, but may be not optimal for exploring the propagation of the steady-state responses, which are strong oscillatory patterns of neurodynamics evoked by periodic stimulation. In our study, we explore a functi...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2018.00118
更新日期:2019-01-15 00:00:00
abstract::A moving visual figure may contain first-order signals defined by variation in mean luminance, as well as second-order signals defined by constant mean luminance and variation in luminance envelope, or higher-order signals that cannot be estimated by taking higher moments of the luminance distribution. Separating thes...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2014.00130
更新日期:2014-10-31 00:00:00
abstract::Short-term synaptic plasticity (STP) sets the sensitivity of a synapse to incoming activity and determines the temporal patterns that it best transmits. In "driver" thalamocortical (TC) synaptic populations, STP is dominated by depression during stimulation from rest. However, during ongoing stimulation, lemniscal TC ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2016.00009
更新日期:2016-02-23 00:00:00
abstract::Defensive behavioral responses are essential for survival in threating situations. The superior colliculus (SC) has been implicated in the generation of defensive behaviors elicited by visual, tactile and auditory stimuli. Furthermore, substantia nigra pars reticulata (SNr) neurons are known to exert a modulatory effe...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2018.00036
更新日期:2018-05-07 00:00:00
abstract::In addition to their ascending pathways that originate at the receptor cells, all sensory systems are characterized by extensive descending projections. Although the size of these connections often outweighs those that carry information in the ascending auditory pathway, we still have a relatively poor understanding o...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2012.00114
更新日期:2013-01-03 00:00:00
abstract::FOXP2 is a transcription factor functionally relevant for learned vocalizations in humans and songbirds. In songbirds, FoxP2 mRNA expression in the medium spiny neurons of the basal ganglia song nucleus Area X is developmentally regulated and varies with singing conditions in different social contexts. How individual ...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2013.00024
更新日期:2013-02-28 00:00:00
abstract::Every higher-order association cortex receives a variety of synaptic signals from different regions of the brain. How these cortical networks are capable of differentially responding to these various extrinsic synaptic inputs remains unclear. To address this issue, we studied how the basolateral amygdala (BLA) and the...
journal_title:Frontiers in neural circuits
pub_type: 杂志文章
doi:10.3389/fncir.2012.00069
更新日期:2012-09-19 00:00:00