نتایج جستجو برای: svz

تعداد نتایج: 1022  

2016
Daniel Bexell Bengt Westermark

The subventricular zone (SVZ) is one of the neu-rogenic regions of the adult brain. We characterized the neu-rogenic response of the SVZ to the growth of brain tumors inthe rat striatum. Abundant nestin positive cells, most likelyrepresenting reactive astrocytes, were found surrounding thetumor. However, we observed no substantial migration ofnestin positive cells from t...

Journal: :International journal of radiation oncology, biology, physics 2013
Percy Lee Wietse Eppinga Frank Lagerwaard Timothy Cloughesy Benjamin Slotman Phioanh L Nghiemphu Pin-Chieh Wang Patrick Kupelian Nzhde Agazaryan John Demarco Michael T Selch Michael Steinberg Jung Julie Kang

PURPOSE Cancer stem cells (CSCs) may play a role in the recurrence of glioblastoma. They are believed to originate from neural stem cells in the subventricular zone (SVZ). Because of their radioresistance, we hypothesized that high doses of radiation (>59.4 Gy) to the SVZ are necessary to control CSCs and improve progression-free survival (PFS) or overall survival (OS) in glioblastoma. METHOD...

Journal: :Cell 1999
Fiona Doetsch Isabelle Caillé Daniel A. Lim Jose Manuel García-Verdugo Arturo Alvarez-Buylla

Neural stem cells reside in the subventricular zone (SVZ) of the adult mammalian brain. This germinal region, which continually generates new neurons destined for the olfactory bulb, is composed of four cell types: migrating neuroblasts, immature precursors, astrocytes, and ependymal cells. Here we show that SVZ astrocytes, and not ependymal cells, remain labeled with proliferation markers afte...

2014
Stephanie Z. Young Carlos A. Lafourcade Jean-Claude Platel Tiffany V. Lin Angélique Bordey

GABA regulates the behavior of neuroblasts and neural progenitor cells in the postnatal neurogenic subventricular zone (SVZ) through GABAA receptor (GABAAR)-mediated calcium increases. However, the source of GABA necessary for sufficient GABAAR-mediated depolarization and calcium increase has remained speculative. Here, we explored whether GABAergic striatal neurons functionally connect with SV...

Journal: :Neuron 2000
Daniel A. Lim Anthony D. Tramontin Jose M. Trevejo Daniel G. Herrera Jose Manuel García-Verdugo Arturo Alvarez-Buylla

Large numbers of new neurons are born continuously in the adult subventricular zone (SVZ). The molecular niche of SVZ stem cells is poorly understood. Here, we show that the bone morphogenetic protein (BMP) antagonist Noggin is expressed by ependymal cells adjacent to the SVZ. SVZ cells were found to express BMPs as well as their cognate receptors. BMPs potently inhibited neurogenesis both in v...

Journal: :Cold Spring Harbor perspectives in biology 2016
Daniel A Lim Arturo Alvarez-Buylla

A large population of neural stem/precursor cells (NSCs) persists in the ventricular-subventricular zone (V-SVZ) located in the walls of the lateral brain ventricles. V-SVZ NSCs produce large numbers of neuroblasts that migrate a long distance into the olfactory bulb (OB) where they differentiate into local circuit interneurons. Here, we review a broad range of discoveries that have emerged fro...

Journal: :Experimental cell research 1999
Oscar Gonzalez-Perez

For decades, it was believed that the adult brain was a quiescent organ unable to produce new neurons. At the beginning of the1960's, this dogma was challenged by a small group of neuroscientists. To date, it is well-known that new neurons are generated in the adult brain throughout life. Adult neurogenesis is primary confined to the subventricular zone (SVZ) of the forebrain and the subgranula...

Journal: :physiology and pharmacology 0
shiva khezri department of physiology,faculty of medical sciences, tarbiat modares university, tehran, iran mohammad javan department of physiology,faculty of medical sciences, tarbiat modares university, tehran, iran hossein baharvand department of stem cell biology, royan institute, tehran, iran saeed semnanian department of physiology,faculty of medical sciences, tarbiat modares university, tehran, iran

introduction: multiple sclerosis (ms) is a chronic inflammatory demyelinating disease. in the present study, we investigated the response of subventricular zone (svz) adult stem cells in the experimental autoimmune encephalomyelitis (eae), an animal model of ms, and also the differentiation fate of these stem cells. methods: mice were immunized with mog peptide emulsified in complete freund&apo...

2016
Tyler C. Steed Jeffrey M. Treiber Kunal Patel Valya Ramakrishnan Alexander Merk Amanda R. Smith Bob S. Carter Anders M. Dale Lionel M. L. Chow Clark C. Chen

INTRODUCTION The subventricular zone (SVZ) has been implicated in the pathogenesis of glioblastoma. Whether molecular subtypes of glioblastoma arise from unique niches of the brain relative to the SVZ remains largely unknown. Here, we tested whether these subtypes of glioblastoma occupy distinct regions of the cerebrum and examined glioblastoma localization in relation to the SVZ. METHODS Pre...

Hossein Baharvand, Mohammad Javan, Saeed Semnanian, Shiva Khezri,

Introduction: Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease. In the present study, we investigated the response of subventricular zone (SVZ) adult stem cells in the experimental autoimmune encephalomyelitis (EAE), an animal model of MS, and also the differentiation fate of these stem cells. Methods: Mice were immunized with MOG peptide emulsified in complete Freund'...

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