Activation of hypothalamic astrocytes suppresses feeding without altering emotional states.

Abstract:

:Emerging evidence shows that hypothalamic astrocytes react to and counteract energy surfeit produced by high-fat diet (HFD) feeding. However, the functional role of astrocytes in the control of energy states and the underlying molecular mechanism(s) during physiological conditions remain largely underexplored. In the present study, by taking advantage of spatiotemporally precise optogenetic approaches, real-time measurements of extracellular adenosine, and behavioral assays, we find that optogenetic stimulation of astrocytes localized in the medial basal hypothalamus (MBH) suppresses food intake in a frequency dependent manner with high frequency, but not low frequency, stimulation of astrocytes reducing food intake. Furthermore, stimulation of MBH astrocytes diminishes orexigenic ghrelin or fasting-induced hyperphagia without effecting anxiety-related behavior. Consistent with a frequency dependent role for MBH astrocytes in feeding behavior, optogenetic stimulation of MBH astrocytes increases extracellular levels of adenosine in a frequency dependent manner. Collectively, our results provide new insights into the role of astrocytes in physiological functions during naturally occurring behaviors, such as feeding. GLIA 2016;64:2263-2273.

journal_name

Glia

journal_title

Glia

authors

Sweeney P,Qi Y,Xu Z,Yang Y

doi

10.1002/glia.23073

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

2263-2273

issue

12

eissn

0894-1491

issn

1098-1136

journal_volume

64

pub_type

杂志文章

相关文献

GLIA文献大全
  • Isolated growth cones stimulate proliferation of cultured Schwann cells.

    abstract::A growth cone-enriched fraction was prepared from 3-4 day rat cerebra. Examination of the growth cone fraction by electron microscopy revealed numerous structures circular in appearance that contain a number of features common to neuronal growth cones in vivo. The isolated growth cones stimulated a dose-dependent inco...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.440050204

    authors: Dent EW,Ida JA Jr,Yoshino JE

    更新日期:1992-01-01 00:00:00

  • The role of chromatin remodeling complexes in Schwann cell development.

    abstract::Schwann cells develop from neural crest cells in an ordered series of events and give rise to myelinating and nonmyelinating subtypes. In their mature state, myelinating Schwann cells produce myelin sheaths that provide trophic support to axons and allow saltatory conduction in the vertebrate peripheral nervous system...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23766

    authors: Fröb F,Wegner M

    更新日期:2020-08-01 00:00:00

  • Glial cells promote dendrite formation and the reception of synaptic input in Purkinje cells from postnatal mice.

    abstract::Previous studies suggest that glial cells contribute to synaptogenesis in specific neurons from the postnatal CNS. Here, we studied whether this is true for Purkinje cells (PCs), which represent a unique neuronal cell type due to their large size, massive synaptic input, and high vulnerability. Using new glia-free cul...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20943

    authors: Buard I,Steinmetz CC,Claudepierre T,Pfrieger FW

    更新日期:2010-04-01 00:00:00

  • Manipulation of the delayed rectifier Kv1.5 potassium channel in glial cells by antisense oligodeoxynucleotides.

    abstract::Glial cells have been shown to express several biophysically and pharmacology distinct potassium channel types. However, the molecular identity of most glial K+ channels is unknown. We have developed an antibody specific for the Shaker type potassium channel Kv1.5 protein, and demonstrate by immunohistochemistry the p...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/(SICI)1098-1136(199611)18:3<177::AID-GLIA2

    authors: Roy ML,Saal D,Perney T,Sontheimer H,Waxman SG,Kaczmarek LK

    更新日期:1996-11-01 00:00:00

  • Endothelin-1 increases 2-arachidonoyl glycerol (2-AG) production in astrocytes.

    abstract::Astrocytes play an important role in neuroprotective responses. Recent studies indicate that endothelin-1, a neuropeptide upregulated during brain injury, increases levels of the endocannabinoid anandamide, a lipid with neuroprotective properties, in astrocytes in primary cultures. However, whether this neuropeptide a...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.10270

    authors: Walter L,Stella N

    更新日期:2003-10-01 00:00:00

  • SDF-1α and LPA modulate microglia potassium channels through rho gtpases to regulate cell morphology.

    abstract::Microglia are the resident immune cells of the brain, which are important therapeutic targets for regulating the inflammatory responses particularly neurodegeneration in the aging human brain. The activation, chemotaxis and migration of microglia are regulated through G-protein coupled receptors by chemokines such as ...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.22543

    authors: Muessel MJ,Harry GJ,Armstrong DL,Storey NM

    更新日期:2013-10-01 00:00:00

  • Upregulation of glutamate transporter GLT-1 by mTOR-Akt-NF-кB cascade in astrocytic oxygen-glucose deprivation.

    abstract::Excessive extracellular glutamate leads to neuronal death in central nervous system. Excitatory glutamate transporter subtype 2 (GLT-1) carries bulk of glutamate reuptake in cerebral ischemia. Although GLT-1 expression fluctuates during the period of ischemia, little is known about its regulatory mechanism. Here we sh...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.22566

    authors: Ji YF,Zhou L,Xie YJ,Xu SM,Zhu J,Teng P,Shao CY,Wang Y,Luo JH,Shen Y

    更新日期:2013-12-01 00:00:00

  • Mitogen-activated protein kinase-signaling regulates the ability of Müller glia to proliferate and protect retinal neurons against excitotoxicity.

    abstract::The purpose of this study was to investigate whether insulin, fibroblast growth factor (FGF), and mitogen-activated protein kinase (MAPK) pathways protect retinal neurons against excitotoxicity and regulate the proliferation of Müller glia. We found that intraocular injections of insulin or FGF2 had variable effects u...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20868

    authors: Fischer AJ,Scott MA,Ritchey ER,Sherwood P

    更新日期:2009-11-01 00:00:00

  • The CpG island shore of the GLT-1 gene acts as a methylation-sensitive enhancer.

    abstract::Astrocytic lineage commitment and brain region-dependent specialization of glia are partly ascribed to epigenetic processes. Clearance of glutamate is an essential task, which astrocytes assume in a temporal-spatial fashion by distinct glutamate transporter expression. Glutamate transporter subtype 1 (GLT-1) is predom...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.22353

    authors: Perisic T,Holsboer F,Rein T,Zschocke J

    更新日期:2012-09-01 00:00:00

  • Interleukin-6 production by brain tissue and cultured astrocytes infected with Theiler's murine encephalomyelitis virus.

    abstract::Theiler's murine encephalomyelitis virus (TMEV) is known to interact with cells of the central nervous system (CNS). Here we report that, interestingly, it is a potent inductor of interleukin-6 (IL-6) in the CNS of infected animals and in pure cultures of astrocytes. Maximal IL-6 gene transcription in glial cells, as ...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.440090106

    authors: Rubio N,Sierra A

    更新日期:1993-09-01 00:00:00

  • Rehabilitative therapies differentially alter proliferation and survival of glial cell populations in the perilesional zone of cortical infarcts.

    abstract::Rehabilitative therapies after stroke are designed to improve remodeling of neuronal circuits and to promote functional recovery. Only very little is known about the underlying cellular mechanisms. In particular, the effects of rehabilitative training on glial cells, which play an important role in the pathophysiology...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20632

    authors: Keiner S,Wurm F,Kunze A,Witte OW,Redecker C

    更新日期:2008-04-01 00:00:00

  • Increased expression of colony-stimulating factor-1 in mouse spinal cord with experimental autoimmune encephalomyelitis correlates with microglial activation and neuronal loss.

    abstract::Microglia contribute to pathophysiology at all stages of multiple sclerosis. Colony-stimulating factor-1 (CSF1) is crucial for microglial proliferation and activation. In this study we measured the CSF1 levels and studied its cellular expression in the mouse spinal cords with experimental autoimmune encephalomyelitis ...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23464

    authors: Gushchina S,Pryce G,Yip PK,Wu D,Pallier P,Giovannoni G,Baker D,Bo X

    更新日期:2018-10-01 00:00:00

  • Sox2-dependent maintenance of mouse oligodendroglioma involves the Sox2-mediated downregulation of Cdkn2b, Ebf1, Zfp423, and Hey2.

    abstract::Cancer stem cells (CSC) are essential for tumorigenesis. The transcription factor Sox2 is overexpressed in brain gliomas, and is essential to maintain CSC. In mouse high-grade glioma pHGG cells in culture, Sox2 deletion causes cell proliferation arrest and inability to reform tumors after transplantation in vivo; in S...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23914

    authors: Barone C,Buccarelli M,Alessandrini F,Pagin M,Rigoldi L,Sambruni I,Favaro R,Ottolenghi S,Pallini R,Ricci-Vitiani L,Malatesta P,Nicolis SK

    更新日期:2021-03-01 00:00:00

  • SNX27, a protein involved in down syndrome, regulates GPR17 trafficking and oligodendrocyte differentiation.

    abstract::The G protein-coupled receptor 17 (GPR17) plays crucial roles in myelination. It is highly expressed during transition of oligodendrocyte progenitor cells to immature oligodendrocytes, but, after this stage, it must be down-regulated to allow generation of mature myelinating cells. After endocytosis, GPR17 is sorted i...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23015

    authors: Meraviglia V,Ulivi AF,Boccazzi M,Valenza F,Fratangeli A,Passafaro M,Lecca D,Stagni F,Giacomini A,Bartesaghi R,Abbracchio MP,Ceruti S,Rosa P

    更新日期:2016-08-01 00:00:00

  • WNT signaling represses astrogliogenesis via Ngn2-dependent direct suppression of astrocyte gene expression.

    abstract::Neural progenitor cells (NPCs) are sequentially specified into neurons and glia during the development of central nervous system. WNT/β-catenin signaling is known to regulate the balance between the proliferation and differentiation of NPCs during neurogenesis. However, the function of WNT/β-catenin signaling during g...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23608

    authors: Sun S,Zhu XJ,Huang H,Guo W,Tang T,Xie B,Xu X,Zhang Z,Shen Y,Dai ZM,Qiu M

    更新日期:2019-07-01 00:00:00

  • Altered membrane physiology in Müller glial cells after transient ischemia of the rat retina.

    abstract::Inwardly rectifying K+ (Kir) channels have been implicated in the mediation of retinal K+ homeostasis by Muller glial cells. To assess possible involvement of altered glial K+ channel expression in ischemia-reperfusion injury, transient retinal ischemia was induced in rat eyes. Acutely isolated Muller cells from posti...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20151

    authors: Pannicke T,Uckermann O,Iandiev I,Biedermann B,Wiedemann P,Perlman I,Reichenbach A,Bringmann A

    更新日期:2005-04-01 00:00:00

  • Effect of TPA on aquaporin 4 mRNA expression in cultured rat astrocytes.

    abstract::Aquaporin 4 (AQP4) is a predominant water channel protein in mammalian brains, localized in the astrocyte plasma membrane. The regulation of AQP4 is believed to be important for the homeostasis of water in the brain, but the AQP4 regulatory mechanisms are not yet known. In this study, we investigated the effect of a p...

    journal_title:Glia

    pub_type: 杂志文章

    doi:

    authors: Nakahama K,Nagano M,Fujioka A,Shinoda K,Sasaki H

    更新日期:1999-02-01 00:00:00

  • Enhanced oligodendrocyte maturation and myelination in a mouse model of Timothy syndrome.

    abstract::To study the role of L-type voltage-gated Ca++ channels in oligodendrocyte development, we used a mouse model of Timothy syndrome (TS) in which a gain-of-function mutation in the α1 subunit of the L-type Ca++ channel Cav1.2 gives rise to an autism spectrum disorder (ASD). Oligodendrocyte progenitor cells (OPCs) isolat...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23468

    authors: Cheli VT,Santiago González DA,Zamora NN,Lama TN,Spreuer V,Rasmusson RL,Bett GC,Panagiotakos G,Paez PM

    更新日期:2018-11-01 00:00:00

  • A normal radial glial scaffold is necessary for migration of interneurons during neocortical development.

    abstract::The relationship between radial glia and neurons migrating tangentially from the ganglionic eminence (GE) has been suggested but not firmly established. To study this relationship we used a ferret model of cortical dysplasia where radial glia are highly disorganized. To produce this, an antimitotic, methylazoxy methan...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20488

    authors: Poluch S,Juliano SL

    更新日期:2007-06-01 00:00:00

  • In vitro evaluation of reactive astrocyte migration, a component of tissue remodeling in glaucomatous optic nerve head.

    abstract::In order to improve understanding of remodeling events in the glaucomatous optic nerve head, the migration of optic nerve head astrocytes was studied in vitro. Since elevated intraocular pressure is an important stress factor identified in glaucomatous eyes, optic nerve head astrocytes were incubated under physical st...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.1052

    authors: Tezel G,Hernandez MR,Wax MB

    更新日期:2001-05-01 00:00:00

  • Astrocytic poly(ADP-ribose) polymerase-1 activation leads to bioenergetic depletion and inhibition of glutamate uptake capacity.

    abstract::Poly(ADP-ribose) polymerase-1 (PARP-1) is a ubiquitous nuclear enzyme involved in genomic stability. Excessive oxidative DNA strand breaks lead to PARP-1-induced depletion of cellular NAD(+), glycolytic rate, ATP levels, and eventual cell death. Glutamate neurotransmission is tightly controlled by ATP-dependent astroc...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.20936

    authors: Tang KS,Suh SW,Alano CC,Shao Z,Hunt WT,Swanson RA,Anderson CM

    更新日期:2010-03-01 00:00:00

  • Activation of interferon signaling pathways in spinal cord astrocytes from an ALS mouse model.

    abstract::Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder affecting predominantly motor neurons. Recent studies suggest that the disease progression of ALS is non-cell-autonomous, although the interaction between neurons and glial cells in different disease stages is not entirely clear. Here, we ...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.21167

    authors: Wang R,Yang B,Zhang D

    更新日期:2011-06-01 00:00:00

  • Basic principles of immunological surveillance of the normal central nervous system.

    abstract::Unlike most bodily organs, the central nervous system (CNS) exists behind a blood-tissue barrier designed to minimize the passage of cells and macromolecules into the neural parenchyma. Yet, the CNS is routinely and effectively surveyed by the immune system. This review examines the mechanisms and participants in this...

    journal_title:Glia

    pub_type: 杂志文章,评审

    doi:10.1002/glia.1101

    authors: Hickey WF

    更新日期:2001-11-01 00:00:00

  • An update on human astrocytes and their role in development and disease.

    abstract::Human astrocytes provide trophic as well as structural support to the surrounding brain cells. Furthermore, they have been implicated in many physiological processes important for central nervous system function. Traditionally astrocytes have been considered to be a homogeneous class of cells, however, it has increasi...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23771

    authors: de Majo M,Koontz M,Rowitch D,Ullian EM

    更新日期:2020-04-01 00:00:00

  • Astrocyte-neuron interaction in the substantia gelatinosa of the spinal cord dorsal horn via P2X7 receptor-mediated release of glutamate and reactive oxygen species.

    abstract::The substantia gelatinosa (SG) of the spinal cord processes incoming painful information to ascending projection neurons. Whole-cell patch clamp recordings from SG spinal cord slices documented that in a low Ca(2+) /no Mg(2+) (low X(2+) ) external medium adenosine triphosphate (ATP)/dibenzoyl-ATP, Bz-ATP) caused inwar...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.22707

    authors: Ficker C,Rozmer K,Kató E,Andó RD,Schumann L,Krügel U,Franke H,Sperlágh B,Riedel T,Illes P

    更新日期:2014-10-01 00:00:00

  • Species differences in immune-mediated CNS tissue injury and repair: A (neuro)inflammatory topic.

    abstract::Cells of the adaptive and innate immune systems in the brain parenchyma and in the meningeal spaces contribute to physiologic functions and disease states in the central nervous system (CNS). Animal studies have demonstrated the involvement of immune constituents, along with major histocompatibility complex (MHC) mole...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.23746

    authors: Healy LM,Yaqubi M,Ludwin S,Antel JP

    更新日期:2020-04-01 00:00:00

  • Transient hypoxia/hypoglycemia upregulates endothelin B receptors in cultured rat astrocytes.

    abstract::Endothelins are potent vasoactive peptides that bind to their specific receptors, playing an important role in the CNS under physiological and pathophysiological conditions. Astrocytes, which have been shown to express these receptors, also have a considerable role to play under physiological and pathophysiological co...

    journal_title:Glia

    pub_type: 杂志文章

    doi:

    authors: Shibaguchi H,Himeno A,Shigematsu K,Kataoka Y,Niwa M

    更新日期:2000-07-01 00:00:00

  • Molecular imaging of microglia/macrophages in the brain.

    abstract::Neuroinflammation perpetuates neuronal damage in many neurological disorders. Activation of resident microglia and infiltration of monocytes/macrophages contributes to neuronal injury and synaptic damage. Noninvasive imaging of these cells in vivo provides a means to monitor progression of disease as well as assess ef...

    journal_title:Glia

    pub_type: 杂志文章,评审

    doi:10.1002/glia.22357

    authors: Venneti S,Lopresti BJ,Wiley CA

    更新日期:2013-01-01 00:00:00

  • Comparative biochemical, morphological, and immunocytochemical studies between C-6 glial cells of early and late passages and advanced passages of glial cells derived from aged mouse cerebral hemispheres.

    abstract::We have used C6 glial cells (2B clone), early and late passage, as well as advanced passages (8-17) of glial cells derived from aged (18-month-old) mouse cerebral hemispheres (MACH), as model systems for studying glial properties. In this study passages 20-24 were considered "early" and passages 73-90 were considered ...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.440060402

    authors: Lee K,Kentroti S,Billie H,Bruce C,Vernadakis A

    更新日期:1992-01-01 00:00:00

  • CD200R1 and CD200 expression are regulated by PPAR-γ in activated glial cells.

    abstract::The mechanisms that control microglial activation are of interest, since neuroinflammation, which involves reactive microglia, may be an additional target in the search for therapeutic strategies to treat neurodegenerative diseases. Neuron-microglia interaction through contact-dependent or independent mechanisms is in...

    journal_title:Glia

    pub_type: 杂志文章

    doi:10.1002/glia.22656

    authors: Dentesano G,Serratosa J,Tusell JM,Ramón P,Valente T,Saura J,Solà C

    更新日期:2014-06-01 00:00:00