Nagore Puente

Nagore Puente
Universidad del País Vasco / Euskal Herriko Unibertsitatea | UPV/EHU · Departamento de Neurociencias

About

65
Publications
11,414
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2,937
Citations
Citations since 2017
30 Research Items
1928 Citations
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400

Publications

Publications (65)
Article
The alteration of the endocannabinoid tone usually associates with changes in the expression and/or function of the cannabinoid CB1 receptor. In Alzheimer's disease (AD), amyloid beta (Aβ)‐containing aggregates induce a chronic inflammatory response leading to reactivity of both microglia and astrocytes. However, how this glial response impacts on...
Article
Full-text available
The present study describes a detailed neuroanatomical distribution map of the cannabinoid type 1 (CB1) receptor, along with the biochemical characterization of the expression and functional coupling to their cognate Gi/o proteins in the medial prefrontal cortex (mPCx) of the obese Zucker rats. The CB1 receptor density was higher in the prelimbic (...
Article
We identified three types of monosynaptic cholinergic inputs spatially arranged onto medial substantia nigra dopaminergic neurons in male and female mice: co-transmitted acetylcholine (ACh)/GABA, GABA only, and ACh only. There was a predominant GABA-only conductance along lateral dendrites and soma-centered ACh/GABA co-transmission. In response to...
Article
Full-text available
The cannabinoid CB1 receptor-mediated functions in astrocytes are highly dependent on the CB1 receptor distribution in these glial cells relative to neuronal sites, particularly at the nearby synapses under normal or pathological conditions. However, the portrait of the CB1 receptor distribution in astroglial compartments remains uncompleted becaus...
Article
Full-text available
Binge drinking (BD) is a serious health concern in adolescents as high ethanol (EtOH) consumption can have cognitive sequelae later in life. Remarkably, an enriched environment (EE) in adulthood significantly recovers memory in mice after adolescent BD, and the endocannabinoid, 2-arachydonoyl-glycerol (2-AG), rescues synaptic plasticity and memory...
Article
Full-text available
The transient receptor potential vanilloid 1 (TRPV1) participates in synaptic functions in the brain. In the dentate gyrus, post-synaptic TRPV1 in the granule cell (GC) dendritic spines mediates a type of long-term depression (LTD) of the excitatory medial perforant path (MPP) synapses independent of pre-synaptic cannabinoid CB1 receptors. As CB1 r...
Article
Full-text available
Alkohola (EtOH) munduan gehien kontsumitzen den substantzia psikoaktiboa da eta nerabezaroko alkoholaren kontsumo intentsiboa geroz eta ohikoagoa da. Adin tarte horretan burmuina garatzen ari da eta hainbat garun-atal zaurgarriagoak dira neurotoxikoen kalteen aurrean; hipokanpoa eta garuntxoa, esaterako. Ingurune aberastuak (IAk), aldaketa molekula...
Article
Recent advances in neuroscience have positioned brain circuits as key units in controlling behavior, implying that their positive or negative modulation necessarily leads to specific behavioral outcomes. However, emerging evidence suggests that the activation or inhibition of specific brain circuits can actually produce multimodal behavioral outcom...
Article
Full-text available
The transient receptor potential vanilloid 1 (TRPV1) is a non-selective ligand-gated cation channel involved in synaptic transmission, plasticity, and brain pathology. In the hippocampal dentate gyrus, TRPV1 localizes to dendritic spines and dendrites postsynaptic to excitatory synapses in the molecular layer (ML). At these same synapses, the canna...
Article
The use and abuse of cannabis can be associated with significant pathophysiology, however it remains unclear whether 1) acute administration of Δ‐9‐tetrahydrocannabinol (THC) during early adulthood alters the cannabinoid type 1 (CB1) receptor localization and expression in cells of the brain, and 2) THC produces structural brain changes. Here we us...
Article
Full-text available
Kate luzeko omega-3 mantenugaiak, azido α-linolenikoa (ALA), azido eikosapentaenoikoa (EPA) etaazido dokosahexaenoikoa (DHA), dietaren bitartez bereganatzen diren gantz-azido (GA) poliasegabeak dira. Propietate antioxidatzaileak barne hartzen dituzten hiru osagai horien elikagai-iturri nagusia arrain koipetsua (izokina, antxoa, hegalaburra…) eta ho...
Article
Full-text available
Astrocytes take up glucose from the bloodstream to provide energy to the brain, thereby allowing neuronal activity and behavioural responses1–5. By contrast, astrocytes are under neuronal control through specific neurotransmitter receptors5–7. However, whether the activation of astroglial receptors can directly regulate cellular glucose metabolism...
Preprint
The idea that the effects of drugs largely depend on subcellular target location is emerging as a novel predictive factor of their beneficial or adverse outcomes. G protein-coupled type-1 cannabinoid receptors (CB 1 ) are regulators of several brain functions as well as the main targets of cannabinoid-based medicines. Besides their classical locati...
Article
Full-text available
The nucleus accumbens (NAc) plays a key role in drug-related behavior and natural reward learning. Synaptic plasticity in dopamine D1 and D2 receptors medium spiny neurons (MSNs) of the NAc and the endogenous cannabinoid (eCB) system have been implicated in reward-seeking. However, the precise molecular and physiological basis of reward-seeking beh...
Article
The cannabinoid CB1 receptor localizes to the glutamatergic parallel fiber (PF) terminals of the cerebellar granule cells and participates in synaptic plasticity, motor control and learning that are impaired in CB1 receptor knockout (CB1‐KO) mice. However, whether ultrastructural changes at the PF‐Purkinje cell (PC) synapses occur in CB1‐KO remains...
Article
Full-text available
Binge drinking is a significant problem in adolescent populations, and because of the reciprocal interactions between ethanol (EtOH) consumption and the endocannabinoid (eCB) system, we sought to determine if adolescent EtOH intake altered the localization and function of the cannabinoid 1 (CB1) receptors in the adult brain. Adolescent mice were ex...
Article
Snoezelen terapia, zentzumen anitzeko terapia (ZAT) ez-farmakologiko eta psikosoziala da; zazpi funtsezko zentzumenen estimulazioan edo erlaxazioan oinarritzen dena, hain zuzen ere. Pertsonon ongizatea eta norberaren bizi-kalitatea hobetzea du helburu nagusia.Ikusmen, entzumen, ukimen, dastamen, oreka, propriozepzio eta usaimen zentzumenak hainbat...
Article
The retrieval of odor-related memories shapes animal behavior. The anterior piriform cortex (aPC) is the largest part of the olfactory cortex, and it plays important roles in olfactory processing and memory. However, it is still unclear whether specific cellular mechanisms in the aPC control olfactory memory, depending on the appetitive or aversive...
Article
Full-text available
The endocannabinoid system modulates synaptic plasticity in the hippocampus, but a link between long-term synaptic plasticity and the type 1 cannabinoid (CB 1 ) receptor at medial perforant path (MPP) synapses remains elusive. Here, immuno-electron microscopy in adult mice showed that ∼26% of the excitatory synaptic terminals in the middle 1/3 of t...
Article
Activation of type 1 cannabinoid (CB1) receptors by endogenous, exogenous (cannabis derivatives) or synthetic cannabinoids (i.e., CP 55.940, Win-2) has a wide variety of behavioral effects due to the presence of CB1 receptors in the brain. In situ hybridization and immunohistochemical techniques have been crucial for defining the CB1 receptor expre...
Article
Drug addiction is a chronic relapsing disorder that produces a dramaticglobal health burden worldwide. Not effective treatment of drug addiction is currently available probably due to the difficulties to find an appropriate target to manage this complex disease raising the needs for further identification of novel therapeutic approaches.The endocan...
Article
Full-text available
Binge drinking (BD) is a common pattern of ethanol (EtOH) consumption by adolescents. The brain effects of the acute EtOH exposure are well‐studied; however, the long‐lasting cognitive and neurobehavioral consequences of BD during adolescence are only beginning to be elucidated. Environmental enrichment (EE) has long been known for its benefits on...
Article
Full-text available
Endokannabinoide-sistema (EKS) zelulen arteko komunikazio sistema fisiologiko neuromodulatzaile garrantzitsuenetako bat da eta funtzio ezagunena, animalia helduan neurotransmisoreen doikuntzan datza. Azken urteotako ikerketek, aldiz, funtzio garrantzitsu honez gain, garapeneko prozesuetan ere biziki parte hartzen duela erakutsi dute. Izan ere, zenb...
Article
Astroglial type-1 cannabinoid (CB1) receptors are involved in synaptic transmission, plasticity and behavior by interfering with the so-called tripartite synapse formed by pre- and post-synaptic neuronal elements and surrounding astrocyte processes. However, little is known concerning the subcellular distribution of astroglial CB1 receptors. In par...
Article
Full-text available
Cannabinoid type-1 (CB1) receptors are widely distributed in the brain and play important roles in astrocyte function and the modulation of neuronal synaptic transmission and plasticity. However, it is currently unknown how CB1 receptor expression in astrocytes is affected by long-term exposure to stressors. Here we examined CB1 receptors in astroc...
Article
The failure to undergo remyelination is a critical impediment to recovery in multiple sclerosis (MS). Chondroitin sulfate proteoglycans (CSPGs) accumulate at demyelinating lesions creating a non-permissive environment that impairs axon regeneration and remyelination. Here, we reveal a new role for 2-arachinonoylglycerol (2-AG), the major CNS endoca...
Chapter
Recent evidence indicates that, besides its canonical localization at cell plasma membranes, the type-1 cannabinoid receptor, CB1 is functionally present at brain and muscle mitochondrial membranes (mtCB1). Through mtCB1 receptors, cannabinoids can directly regulate intramitochondrial signaling and respiration. This new and surprising discovery pav...
Article
Full-text available
The dorsal striatum is a key node for many neurobiological processes such as motor activity, cognitive functions, and affective processes. The proper functioning of striatal neurons relies critically on metabotropic receptors. Specifically, the main adenosine and endocannabinoid receptors present in the striatum, ie, adenosine A2A receptor (A2AR) a...
Article
Cellular activity in the brain depends on the high energetic support provided by mitochondria, the cell organelles which use energy sources to generate ATP. Acute cannabinoid intoxication induces amnesia in humans and animals, and the activation of type-1 cannabinoid receptors present at brain mitochondria membranes (mtCB1) can directly alter mitoc...
Article
Full-text available
The cannabinoid type 1 (CB1) receptor is widely distributed in the brain and peripheral organs where it regulates cellular functions and metabolism. In the brain, CB1 is mainly localized on presynaptic axon terminals but is also found on mitochondria (mtCB1), where it regulates cellular respiration and energy production. Likewise, CB1 is localized...
Article
Type-1 cannabinoid (CB1 ) receptors are widely distributed in the brain. Their physiological roles depend on their distribution pattern that differs remarkably among cell types. Hence, subcellular compartments with little but functional relevant CB1 receptors can be overlooked, fostering an incomplete mapping. To overcome this, knock-in mice with c...
Conference Paper
Full-text available
Laburpena Gaur egun, gero eta ebidentzia gehiago aurkitzen dira sistema endokannabinoideak (eCB) estres-prozesuetan duen ondorioei buruz. Sistema horretan dagoen CB1 hartzailea (CB1R) genetikoki ezabatzeak hipotalamo-hipofisi-adrenal (HPA) ardatzaren aktibitatea areagotzea eragiten du eta animaliak estresera sentsibilizatzen ditu. Are gehiago, iker...
Article
Full-text available
A preembedding immunoperoxidase method was used to study the distribution of the GluR2/3 and GluR4 AMPA subunits of the ionotropic glutamate receptors in the peripheral vestibular epithelium of the hatched chicken. At the light microscopic level, a strong immunoreactivity for both subunits was observed around type I hair cells in the cristae ampull...
Article
Full-text available
We have recently shown that the transient receptor potential vanilloid type 1 (TRPV1), a non-selective cation channel in the peripheral and central nervous system, is localized at postsynaptic sites of the excitatory perforant path synapses in the hippocampal dentate molecular layer (ML). In the present work, we have studied the distribution of TRP...
Article
Full-text available
Brain mitochondrial activity is centrally involved in the central control of energy balance. When studying mitochondrial functions in the brain, however, discrepant results might be obtained, depending on the experimental approaches. For instance, immunostaining experiments and biochemical isolation of organelles expose investigators to risks of fa...
Article
Full-text available
The hypothalamus and the endocannabinoid system are important players in the regulation of energy homeostasis. In a previous study, we described the ultrastructural distribution of CB1 receptors in GABAergic and glutamatergic synaptic terminals of the dorsomedial region of the ventromedial nucleus of the hypothalamus (VMH). However, the specific lo...
Article
Full-text available
The transient receptor potential vanilloid type 1 (TRPV1) is a non-selective cation channel that plays an important role in pain perception and modulates neurotransmitter release and synaptic plasticity in the brain. TRPV1 function must lay on its anatomical distribution in the peripheral and central nervous system regions involved in the physiolog...
Article
Full-text available
NMDA receptors (NMDARs) are classically known as coincidence detectors for the induction of long-term synaptic plasticity and have been implicated in hippocampal CA3 cell-dependent spatial memory functions that likely rely on dynamic cellular ensemble encoding of space. The unique functional properties of both NMDARs and mossy fiber projections to...
Article
The mammalian brain is one of the organs with the highest energy demands, and mitochondria are key determinants of its functions. Here we show that the type-1 cannabinoid receptor (CB(1)) is present at the membranes of mouse neuronal mitochondria (mtCB(1)), where it directly controls cellular respiration and energy production. Through activation of...
Article
Full-text available
The parasagittal distribution of the splice variant 1b of the metabotropic glutamate receptor 1 (mGluR1b) was studied in the cerebellar cortex by using a specific mGluR1b antiserum combined with immunocytochemical methods. In f rontal cerebellar sections, the antibodies revealed alternating bands of immunopositive and immunonegative Purkinje cells...
Article
Full-text available
The reason why neurons synthesize more than one endocannabinoid (eCB) and how this is involved in the regulation of synaptic plasticity in a single neuron is not known. We found that 2-arachidonoylglycerol (2-AG) and anandamide mediate different forms of plasticity in the extended amygdala of rats. Dendritic L-type Ca(2+) channels and the subsequen...
Article
Full-text available
Background: Type-1 cannabinoid receptors (CB(1)R) are enriched in the hypothalamus, particularly in the ventromedial hypothalamic nucleus (VMH) that participates in homeostatic and behavioral functions including food intake. Although CB(1)R activation modulates excitatory and inhibitory synaptic transmission in the brain, CB(1)R contribution to th...
Article
1,2-diacylglycerol lipase alpha (DAGLα) is responsible for the biosynthesis and release of 2-arachidonoyl-glycerol (2-AG), the most abundant endocannabinoid in the brain. Although its expression has been detected in discrete regions, we showed here an integrated description of the distribution of DAGLα mRNA and protein in the rat forebrain using in...
Article
A proper motor activity relies on a correct cerebellar function. The Kv3.1 and Kv3.3 voltage-gated potassium channels are key proteins involved in cerebellar function and dysfunction, as the lack of these causes severe motor deficits. Both channel subunits are coexpressed in granule cells and are rapidly activated at relatively positive potentials...
Article
Full-text available
Similar to dopamine (DA), cannabinoids strongly influence prefrontal cortical functions, such as working memory, emotional learning, and sensory perception. Although endogenous cannabinoid receptors (CB(1)Rs) are abundantly expressed in the prefrontal cortex (PFC), very little is known about endocannabinoid (eCB) signaling in this brain region. Rec...
Article
Full-text available
Activation of cannabinoid type-1 receptors (CB(1)) is universally recognized as a powerful endogenous orexigenic signal, but the detailed underlying neuronal mechanisms are not fully understood. Using combined genetic and pharmacological approaches in mice, we found that ventral striatal CB(1) receptors exerted a hypophagic action through inhibitio...
Article
Full-text available
The bed nucleus of the stria terminalis (BNST) is involved in behaviors related to natural reward, drug addiction and stress. In spite of the emerging role of the endogenous cannabinoid (eCB) system in these behaviors, little is known about the anatomy and function of this system in the anterolateral BNST (alBNST). The aim of this study was to prov...
Article
The mature calyx of Held ending on principal neurons of the medial nucleus of the trapezoid body (MNTB) has very specialized morphological and molecular features that make it possible to transmit auditory signals with high fidelity. In a previous work we described an increased localization of the ionotropic alpha-amino-3-hydroxy-5-methyl-4 isoxazol...
Article
Deep cerebellar dentate nuclei are in a key position to control motor planning as a result of an integration of cerebropontine inputs and hemispheric Purkinje neurons signals, and their influence through synaptic outputs onto extracerebellar hubs. GABAergic dentate neurons exhibit broader action potentials and slower afterhyperpolarization than non...
Article
Full-text available
The endocannabinoid system is involved in multiple physiological functions including reward. Cannabinoids potently control the activity of midbrain dopamine cells, but the contribution of cortical projections in this phenomenon is unclear. We show that the bed nucleus of the stria terminalis (BNST) efficient relays cortical excitation to dopamine n...
Article
The pattern of expression of ionotropic glutamate receptor (GluR) subunits 1-4 in the medial nucleus of the trapezoid body (MNTB) has been reported to change during development. The aim of this study was to compare the distribution of the GluR1-4 subunits in the MNTB at postnatal day (P) 9, before high-frequency signal transmission in the auditory...
Article
Full-text available
Alterations of long-term synaptic plasticity have been proposed to participate in the development of addiction. To preserve synaptic functions, homeostatic processes must be engaged after exposure to abused drugs. At the mouse cortico-accumbens synapses, a single in vivo injection of Delta9-tetrahydrocannabinol (THC) suppresses endocannabinoid-medi...
Article
Full-text available
We examined the effect of glutamate transporter blockade at the calyx of Held synapse. In immature synapses [defined as postnatal day 8 (P8) to P10 rats], transporter blockade causes tonic activation of NMDA receptors and strong inhibition of the AMPA receptor-mediated EPSC amplitude. EPSC inhibition was blocked with a metabotropic glutamate recept...
Article
Several studies indicate that metabotropic glutamate receptors (mGluRs) participate in the transmission of visual stimuli in optic layers of the superior colliculus (SC). We examined the cellular and subcellular distribution of the group III mGluR4a in superficial layers of the rat SC by means of a specific antiserum and a preembedding immunogold m...
Article
Full-text available
We investigated the mechanisms by which activation of group I metabotropic glutamate receptors (mGluRs) and CB1 cannabinoid receptors (CB1Rs) leads to inhibition of synaptic currents at the calyx of Held synapse in the medial nucleus of the trapezoid body (MNTB) of the rat auditory brainstem. In approximately 50% of the MNTB neurons tested, activat...
Article
Full-text available
We investigated the mechanisms by which activation of group I metabotropic glutamate receptors (mGluRs) and CB1 cannabinoid receptors (CB1Rs) leads to inhibition of synaptic currents at the calyx of Held synapse in the medial nucleus of the trapezoid body (MNTB) of the rat auditory brainstem. In approximately 50
Article
A pre-embedding immunocytochemical method was used to study the subcellular distribution of the voltage-dependent potassium channel Kv3.1b in the medial nucleus of the trapezoid body (MNTB) in developing and adult rat. The main finding was the localization of the channel in specific membrane compartments of the calyces of Held and principal globula...
Article
Studies indicate that metabotropic glutamate receptors (mGluRs) may play a role in spinal sensory transmission. We examined the cellular and subcellular distribution of the mGluR subtype 4a in spinal tissue by means of a specific antiserum and immunocytochemical techniques for light and electron microscopy. A dense plexus of mGluR4a-immunoreactive...
Article
The existence of a neuronal-glial signalling through the activation of neurotransmitter receptors expressed in glia is well-documented. In excitatory synapses, glutamate released from presynaptic terminals activates not only postsynaptic receptors, but also ionotropic and metabotropic glutamate receptors localized in the glia ensheathing the synaps...

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Question
I need to perform double immuno EM on sections of tissue embedded in Lowicryl HM20. One of the antibodies has to be an anti-mCherry or anti-tdTomato. Does anybody have any previous experience with anti-tdTomato on immunoEM?

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