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Volume 17, Number 10,
Issue of May 15, 1997
pp. 3727-3738
Copyright ©1997 Society for Neuroscience
Dentate Granule Cell Neurogenesis Is Increased by Seizures and
Contributes to Aberrant Network Reorganization in the Adult Rat
Hippocampus
Received Nov. 2, 1996; revised Feb. 11, 1997; accepted Feb. 27, 1997.
Jack M. Parent1,
Timothy W. Yu2,
Rebecca T. Leibowitz1,
Daniel H. Geschwind3,
Robert S. Sloviter4, and
Daniel H. Lowenstein1, 2
1 Departments of Neurology and Anatomy, and
2 Graduate Program in Neuroscience, University of
California, San Francisco, California 94143, 3 Department
of Neurology, University of California, Los Angeles, California 90024, 4 Neurology Research Center, Helen Hayes Hospital, West
Haverstraw, New York 10993, and Departments of Pharmacology and
Neurology, Columbia University, New York, New York 10032
The dentate granule cell layer of the rodent hippocampal
formation has the distinctive property of ongoing neurogenesis that continues throughout adult life. In both human temporal lobe epilepsy and rodent models of limbic epilepsy, this same neuronal population undergoes extensive remodeling, including reorganization of mossy fibers, dispersion of the granule cell layer, and the appearance of
granule cells in ectopic locations within the dentate gyrus. The
mechanistic basis of these abnormalities, as well as their potential
relationship to dentate granule cell neurogenesis, is unknown. We used
a systemic chemoconvulsant model of temporal lobe epilepsy and
bromodeoxyuridine (BrdU) labeling to investigate the effects of
prolonged seizures on dentate granule cell neurogenesis in adult rats,
and to examine the contribution of newly differentiated dentate granule
cells to the network changes seen in this model. Pilocarpine-induced
status epilepticus caused a dramatic and prolonged increase in cell
proliferation in the dentate subgranular proliferative zone (SGZ), an
area known to contain neuronal precursor cells. Colocalization of
BrdU-immunolabeled cells with the neuron-specific markers turned on
after division, 64 kDa, class III -tubulin, or
microtubule-associated protein-2 showed that the vast majority of these
mitotically active cells differentiated into neurons in the granule
cell layer. Newly generated dentate granule cells also appeared in
ectopic locations in the hilus and inner molecular layer of the dentate
gyrus. Furthermore, developing granule cells projected axons aberrantly
to both the CA3 pyramidal cell region and the dentate inner molecular
layer. Induction of hippocampal seizure activity by perforant path
stimulation resulted in an increase in SGZ mitotic activity similar to
that seen with pilocarpine administration. These observations indicate
that prolonged seizure discharges stimulate dentate granule cell
neurogenesis, and that hippocampal network plasticity associated with
epileptogenesis may arise from aberrant connections formed by newly
born dentate granule cells.
Key words:
hippocampus;
dentate granule cells;
neurogenesis;
pilocarpine;
seizures;
epilepsy;
mossy fiber sprouting;
network
reorganization;
synaptic plasticity
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L. A. Mitchell, A. S. Harvey, L. T. Coleman, S. A. Mandelstam, and G. D. Jackson
Anterior Temporal Changes on MR Images of Children with Hippocampal Sclerosis: An Effect of Seizures on the Immature Brain?
AJNR Am. J. Neuroradiol.,
September 1, 2003;
24(8):
1670 - 1677.
[Abstract]
[Full Text]
[PDF]
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J. M. Parent
Injury-Induced Neurogenesis in the Adult Mammalian Brain
Neuroscientist,
August 1, 2003;
9(4):
261 - 272.
[Abstract]
[PDF]
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C. R. Cogle, S. M. Guthrie, R. C. Sanders, W. L. Allen, E. W. Scott, and B. E. Petersen
An Overview of Stem Cell Research and Regulatory Issues
Mayo Clin. Proc.,
August 1, 2003;
78(8):
993 - 1003.
[Abstract]
[PDF]
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A. Sahay, M. E. Molliver, D. D. Ginty, and A. L. Kolodkin
Semaphorin 3F Is Critical for Development of Limbic System Circuitry and Is Required in Neurons for Selective CNS Axon Guidance Events
J. Neurosci.,
July 30, 2003;
23(17):
6671 - 6680.
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M. A. Curtis, E. B. Penney, A. G. Pearson, W. M. C. van Roon-Mom, N. J. Butterworth, M. Dragunow, B. Connor, and R. L. M. Faull
Increased cell proliferation and neurogenesis in the adult human Huntington's disease brain
PNAS,
July 22, 2003;
100(15):
9023 - 9027.
[Abstract]
[Full Text]
[PDF]
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R. C. Elliott, M. F. Miles, and D. H. Lowenstein
Overlapping Microarray Profiles of Dentate Gyrus Gene Expression during Development- and Epilepsy-Associated Neurogenesis and Axon Outgrowth
J. Neurosci.,
March 15, 2003;
23(6):
2218 - 2227.
[Abstract]
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H. Dong, C. A. Csernansky, B. Goico, and J. G. Csernansky
Hippocampal Neurogenesis Follows Kainic Acid-Induced Apoptosis in Neonatal Rats
J. Neurosci.,
March 1, 2003;
23(5):
1742 - 1749.
[Abstract]
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Y. ZHU, K. JIN, X. O. MAO, and D. A. GREENBERG
Vascular endothelial growth factor promotes proliferation of cortical neuron precursors by regulating E2F expression
FASEB J,
February 1, 2003;
17(2):
186 - 193.
[Abstract]
[Full Text]
[PDF]
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G. Q. Daley, M. A. Goodell, and E. Y. Snyder
Realistic Prospects for Stem Cell Therapeutics
Hematology,
January 1, 2003;
2003(1):
398 - 418.
[Abstract]
[Full Text]
[PDF]
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S. C. Danzer, K. R. C. Crooks, D. C. Lo, and J. O. McNamara
Increased Expression of Brain-Derived Neurotrophic Factor Induces Formation of Basal Dendrites and Axonal Branching in Dentate Granule Cells in Hippocampal Explant Cultures
J. Neurosci.,
November 15, 2002;
22(22):
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S. Faverjon, D. C. Silveira, D. D. Fu, B. H. Cha, C. Akman, Y. Hu, and G. L. Holmes
Beneficial effects of enriched environment following status epilepticus in immature rats
Neurology,
November 12, 2002;
59(9):
1356 - 1364.
[Abstract]
[Full Text]
[PDF]
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K. Jin, Y. Zhu, Y. Sun, X. O. Mao, L. Xie, and D. A. Greenberg
Vascular endothelial growth factor (VEGF) stimulates neurogenesis in vitro and in vivo
PNAS,
September 3, 2002;
99(18):
11946 - 11950.
[Abstract]
[Full Text]
[PDF]
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M. C. Walker, H. S. White, and J. W. A. S. Sander
Disease modification in partial epilepsy
Brain,
September 1, 2002;
125(9):
1937 - 1950.
[Abstract]
[Full Text]
[PDF]
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D. A. Rempe and T. A. Kent
Using bone marrow stromal cells for treatment of stroke
Neurology,
August 27, 2002;
59(4):
486 - 486.
[Full Text]
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C. A. Haas, O. Dudeck, M. Kirsch, C. Huszka, G. Kann, S. Pollak, J. Zentner, and M. Frotscher
Role for Reelin in the Development of Granule Cell Dispersion in Temporal Lobe Epilepsy
J. Neurosci.,
July 15, 2002;
22(14):
5797 - 5802.
[Abstract]
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X. Zhang, S.-S. Cui, A. E. Wallace, D. K. Hannesson, L. C. Schmued, D. M. Saucier, W. G. Honer, and M. E. Corcoran
Relations between Brain Pathology and Temporal Lobe Epilepsy
J. Neurosci.,
July 15, 2002;
22(14):
6052 - 6061.
[Abstract]
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K. Jin, X. O. Mao, Y. Sun, L. Xie, L. Jin, E. Nishi, M. Klagsbrun, and D. A. Greenberg
Heparin-Binding Epidermal Growth Factor-Like Growth Factor: Hypoxia-Inducible Expression In Vitro and Stimulation of Neurogenesis In Vitro and In Vivo
J. Neurosci.,
July 1, 2002;
22(13):
5365 - 5373.
[Abstract]
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[PDF]
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J. M. Parent, V. V. Valentin, and D. H. Lowenstein
Prolonged Seizures Increase Proliferating Neuroblasts in the Adult Rat Subventricular Zone-Olfactory Bulb Pathway
J. Neurosci.,
April 15, 2002;
22(8):
3174 - 3188.
[Abstract]
[Full Text]
[PDF]
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H. E. Scharfman
Book Review: Epilepsy as an Example of Neural Plasticity
Neuroscientist,
April 1, 2002;
8(2):
154 - 173.
[Abstract]
[PDF]
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R. Koyama, M. K. Yamada, N. Nishiyama, N. Matsuki, and Y. Ikegaya
Group II metabotropic glutamate receptor activation is required for normal hippocampal mossy fibre development in the rat
J. Physiol.,
February 15, 2002;
539(1):
157 - 162.
[Abstract]
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R. S. Briellmann, R. M. Kalnins, S. F. Berkovic, and G. D. Jackson
Hippocampal pathology in refractory temporal lobe epilepsy: T2-weighted signal change reflects dentate gliosis
Neurology,
January 22, 2002;
58(2):
265 - 271.
[Abstract]
[Full Text]
[PDF]
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L. Vallieres, I. L. Campbell, F. H. Gage, and P. E. Sawchenko
Reduced Hippocampal Neurogenesis in Adult Transgenic Mice with Chronic Astrocytic Production of Interleukin-6
J. Neurosci.,
January 15, 2002;
22(2):
486 - 492.
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Z. Mtchedlishvili, E. H Bertram, and J. Kapur
Diminished allopregnanolone enhancement of GABAA receptor currents in a rat model of chronic temporal lobe epilepsy
J. Physiol.,
December 1, 2001;
537(2):
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[Abstract]
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M. P. Jacobs, G. D. Fischbach, M. R. Davis, M. A. Dichter, R. Dingledine, D. H. Lowenstein, M. J. Morrell, J. L. Noebels, M. A. Rogawski, S. S. Spencer, et al.
Future directions for epilepsy research
Neurology,
November 13, 2001;
57(9):
1536 - 1542.
[Abstract]
[Full Text]
[PDF]
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B. Seri, J. M. Garcia-Verdugo, B. S. McEwen, and A. Alvarez-Buylla
Astrocytes Give Rise to New Neurons in the Adult Mammalian Hippocampus
J. Neurosci.,
September 15, 2001;
21(18):
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[Abstract]
[Full Text]
[PDF]
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E. Gould, N. Vail, M. Wagers, and C. G. Gross
Adult-generated hippocampal and neocortical neurons in macaques have a transient existence
PNAS,
August 23, 2001;
(2001)
181354698.
[Abstract]
[Full Text]
[PDF]
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S. Mizuhashi, N. Nishiyama, N. Matsuki, and Y. Ikegaya
Cyclic Nucleotide-Mediated Regulation of Hippocampal Mossy Fiber Development: A Target-Specific Guidance
J. Neurosci.,
August 15, 2001;
21(16):
6181 - 6194.
[Abstract]
[Full Text]
[PDF]
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J.-Z. Chuang, T. A. Milner, and C.-H. Sung
Subunit Heterogeneity of Cytoplasmic Dynein: Differential Expression of 14 kDa Dynein Light Chains in Rat Hippocampus
J. Neurosci.,
August 1, 2001;
21(15):
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[Abstract]
[Full Text]
[PDF]
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Y. Yagita, K. Kitagawa, T. Ohtsuki, K.-i. Takasawa, T. Miyata, H. Okano, M. Hori, and M. Matsumoto
Neurogenesis by Progenitor Cells in the Ischemic Adult Rat Hippocampus
Stroke,
August 1, 2001;
32(8):
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[Abstract]
[Full Text]
[PDF]
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J. S. Snyder, N. Kee, and J. M. Wojtowicz
Effects of Adult Neurogenesis on Synaptic Plasticity in the Rat Dentate Gyrus
J Neurophysiol,
June 1, 2001;
85(6):
2423 - 2431.
[Abstract]
[Full Text]
[PDF]
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W. Jiang, W. Gu, T. Brannstrom, R. Rosqvist, and P. Wester
Cortical Neurogenesis in Adult Rats After Transient Middle Cerebral Artery Occlusion
Stroke,
May 1, 2001;
32(5):
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[Abstract]
[Full Text]
[PDF]
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K. Jin, M. Minami, J. Q. Lan, X. O. Mao, S. Batteur, R. P. Simon, and D. A. Greenberg
Neurogenesis in dentate subgranular zone and rostral subventricular zone after focal cerebral ischemia in the rat
PNAS,
April 10, 2001;
98(8):
4710 - 4715.
[Abstract]
[Full Text]
[PDF]
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B. K. McCabe, D. C. Silveira, M. R. Cilio, B. H. Cha, X. Liu, Y. Sogawa, and G. L. Holmes
Reduced Neurogenesis after Neonatal Seizures
J. Neurosci.,
March 15, 2001;
21(6):
2094 - 2103.
[Abstract]
[Full Text]
[PDF]
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H. J. Wenzel, C. A. Robbins, L.-H. Tsai, and P. A. Schwartzkroin
Abnormal Morphological and Functional Organization of the Hippocampus in a p35 Mutant Model of Cortical Dysplasia Associated with Spontaneous Seizures
J. Neurosci.,
February 1, 2001;
21(3):
983 - 998.
[Abstract]
[Full Text]
[PDF]
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J. E. Malberg, A. J. Eisch, E. J. Nestler, and R. S. Duman
Chronic Antidepressant Treatment Increases Neurogenesis in Adult Rat Hippocampus
J. Neurosci.,
December 15, 2000;
20(24):
9104 - 9110.
[Abstract]
[Full Text]
[PDF]
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R. S. Briellmann, S. F. Berkovic, and G. D. Jackson
Men may be more vulnerable to seizure-associated brain damage
Neurology,
November 28, 2000;
55(10):
1479 - 1485.
[Abstract]
[Full Text]
[PDF]
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J. Liu, R. Bernabeu, A. Lu, and F. R. Sharp
Neurogenesis and Gliogenesis in the Postischemic Brain
Neuroscientist,
October 1, 2000;
6(5):
362 - 370.
[Abstract]
[PDF]
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