Group I metabotropic glutamate receptors control proliferation, survival and differentiation of cultured neural progenitor cells isolated from the subventricular zone of adult mice

Castiglione, Marzia; Calafiore, Marco; Costa, Lara; Sortino, Maria Angela; Nicoletti, Ferdinando; Copani, Agata

doi:10.1016/j.neuropharm.2008.05.021

Cited by 44 publications

(52 citation statements)

References 47 publications

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“…1). Previous work demonstrated that SVZ-NSCs express the transcripts of all mGluRs subtypes with the exception of mGluR2 and mGluR6 [15]. By means of a semiquantitative RT-PCR, here we observed that SC-NSCs expressed all the transcripts, with the exception of mGluR8.…”

Section: Results and Discussion Mglurs Expression And Functional Characsupporting

confidence: 69%

Group I metabotropic glutamate receptor signaling regulates the release of BDNF and LIF by neural stem cells

Donegá

Giusto

Leonardi

et al. 2018

Matters

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Section: Results and Discussion Mglurs Expression And Functional Characsupporting

confidence: 69%

Group I metabotropic glutamate receptor signaling regulates the release of BDNF and LIF by neural stem cells

Donegá

Giusto

Leonardi

et al. 2018

Matters

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“…Although mGluR5 has been largely investigated in the central nervous system, a variety of studies report the expression and/or function of mGluR5 in nonneuronal cells and cancer cells (8,10,13,14,19,20). In particular, patients with oral squamous cell carcinoma tissues that are strongly positive for mGluR5 immunoreactivity had a decreased 5-y survival rate compared with mGluR5-negative patients (19).…”

Section: Discussionmentioning

confidence: 99%

“…In bone cells, glutamate or NMDA application increases NMDA receptor currents (7). Similarly, mGluR5 expression has been observed in many types of cells other than neurons, including astrocytes, hepatocytes, melanocytes, osteoblast cells (8-11), fibroblast cells (12), and more recently, stem cells (13,14). In astrocytes, mGluR5 triggers intracellular Ca 2+ release that is potentiated by adenosine receptor activation (8).…”

mentioning

confidence: 99%

Expression of the metabotropic glutamate receptor 5 (mGluR5) induces melanoma in transgenic mice

Choi

Chang

Pickel

et al. 2011

Proc. Natl. Acad. Sci. U.S.A.

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Glutamate is the major excitatory neurotransmitter in the mammalian CNS and mediates fast synaptic transmission upon activation of glutamate-gated ion channels. In addition, glutamate modulates a variety of other synaptic responses and intracellular signaling by activating metabotropic glutamate receptors (mGluRs), which are G protein-coupled receptors. The mGluRs are also expressed in nonneuronal tissues and are implicated in a variety of normal biological functions as well as diseases. To study mGluR-activated calcium signaling in neurons, we generated mGluR5 transgenic animals using a Thy1 promoter to drive expression in the forebrain, and one founder unexpectedly developed melanoma. To directly investigate the role of mGluR5 in melanoma formation, we generated mGluR5 transgenic lines under a melanocyte-specific promoter, tyrosinase-related protein 1. A majority of the founders showed a severe phenotype with early onset. Hyperpigmentation of the pinnae and tail could be detected as early as 3-5 d after birth for most of the mGluR5 transgene-positive mice. There was 100% penetrance in the progeny from the tyrosinase-related protein 1-mGluR5 lines generated from founders that developed melanoma. Expression of mGluR5 was detected in melanoma samples by RT-PCR, immunoblotting, and immunohistochemistry. We evaluated the expression of several cancer-related proteins in tumor samples and observed a dramatic increase in the phosphorylation of ERK, implicating ERK as a downstream effector of mGluR5 signaling in tumors. Our findings show that mGluR5-mediated glutamatergic signaling can trigger melanoma in vivo. The aggressive growth and severe phenotype make these mouse lines unique and a potentially powerful tool for therapeutic studies.etabotropic glutamate receptors (mGluRs) are G proteincoupled receptors that are widely expressed in the brain and modulate many diverse signaling pathways. In the CNS, mGluR activation regulates ion channels, mediates slow excitatory and inhibitory responses, modulates neurotransmitter release, and regulates neuronal development and growth (1-3). In addition, various neurological disorders have been attributed to functional impairment of mGluRs in the CNS. The mGluRs (mGluR1-8) are classified into three groups on the basis of sequence identity and pharmacological properties. Group I mGluRs (mGluR1 and mGluR5) are G q -coupled receptors that activate PLCβ, resulting in intracellular Ca 2+ release and protein kinase C (PKC) activation (4).Although glutamate signaling is usually investigated in the context of CNS function, it clearly plays a role in nonneuronal cells as well. In particular, glutamate signaling has been described in astrocytes, cerebral endothelial cells, bone, and skin (5, 6). In bone cells, glutamate or NMDA application increases NMDA receptor currents (7). Similarly, mGluR5 expression has been observed in many types of cells other than neurons, including astrocytes, hepatocytes, melanocytes, osteoblast cells (8-11), fibroblast cells (12), and more recently, stem cells ...

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“…mGluR5, a group I metabotropic glutamate receptor, is the predominant subtype expressed in zones of active neurogenesis in the prenatal and postnatal rat brain [7] and in cultured neurospheres from mouse forebrain [8] . Cell proliferation is decreased by pharmacological blockade of mGluR5 and increased by its activation.…”

Section: Introductionmentioning

confidence: 99%

“…The numbers of proliferating neural progenitors are significantly reduced in the hippocampal subventricular zone (SVZ) and DG in adult mice lacking mGluR5 or treated with an mGluR5 antagonist [9,10] . In particular, the study by Castiglione suggested that mGluR5 specifically supports the survival of progenitors undergoing differentiation into neurons [8] .…”

Section: Introductionmentioning

confidence: 99%

Developmental distribution pattern of metabotropic glutamate receptor 5 in prenatal human hippocampus

et al. 2012

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Group I metabotropic glutamate receptors control proliferation, survival and differentiation of cultured neural progenitor cells isolated from the subventricular zone of adult mice

Cited by 44 publications

References 47 publications

Group I metabotropic glutamate receptor signaling regulates the release of BDNF and LIF by neural stem cells

Group I metabotropic glutamate receptor signaling regulates the release of BDNF and LIF by neural stem cells

Expression of the metabotropic glutamate receptor 5 (mGluR5) induces melanoma in transgenic mice

Developmental distribution pattern of metabotropic glutamate receptor 5 in prenatal human hippocampus

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