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The Journal of Neuroscience, April 1, 1999, 19(7):2455-2463
The Mitogen-Activated Protein Kinase Pathway Mediates
Estrogen Neuroprotection after Glutamate Toxicity in Primary
Cortical Neurons
Cherie A.
Singer1,
Xavier A.
Figueroa-Masot3,
Robert H.
Batchelor1, and
Daniel M.
Dorsa1, 2
Departments of 1 Pharmacology and
2 Psychiatry and Behavioral Sciences and
3 Graduate Program in Neurobiology and Behavior, University
of Washington, Seattle, Washington 98195
Pharmacological and biochemical approaches were used to elucidate
the involvement of growth factor signaling pathways mediating estrogen
neuroprotection in primary cortical neurons after glutamate excitotoxicity. We addressed the activation of mitogen-activated protein kinase (MAPK) signaling pathways, which are activated by growth
factors such as nerve growth factor (NGF). Inhibition of MAPK signaling
with the MAPK kinase inhibitor PD98059 blocks both NGF and estrogen
neuroprotection in these neurons. These results correlate with a rapid
and sustained increase in MAPK activity within 30 min of estrogen
exposure. The involvement of signaling molecules upstream from MAPK was
also examined to determine whether activation of MAPK by estrogen is
mediated by tyrosine kinase activity. Estrogen produces a rapid,
transient activation of src-family tyrosine kinases and tyrosine
phosphorylation of p21ras-guanine nucleotide
activating protein. Effects of estrogen on neuroprotection, as well as
rapid activation of tyrosine kinase and MAPK activity, are blocked by
the anti-estrogen ICI 182,780. This provides evidence that activation
of the MAPK pathway by estrogen participates in mediating
neuroprotection via an estrogen receptor. These results describe a
novel mechanism by which cytoplasmic actions of the estrogen receptor
may activate the MAPK pathway, thus broadening the understanding of
effects of estrogen in neurons.
Key words:
estrogen; MAPK; neuroprotection; growth factors; excitotoxicity; src; GAP
Copyright © 1999 Society for Neuroscience 0270-6474/99/1972455-09$05.00/0
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J. Nilsen and R. D. Brinton
Impact of Progestins on Estrogen-Induced Neuroprotection: Synergy by Progesterone and 19-Norprogesterone and Antagonism by Medroxyprogesterone Acetate
Endocrinology,
January 1, 2002;
143(1):
205 - 212.
[Abstract]
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I. S. Nethrapalli, M. Singh, X. Guan, Q. Guo, D. B. Lubahn, K. S. Korach, and C. D. Toran-Allerand
Estradiol (E2) Elicits Src Phosphorylation in the Mouse Neocortex: The Initial Event in E2 Activation of the MAPK Cascade?
Endocrinology,
December 1, 2001;
142(12):
5145 - 5148.
[Abstract]
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S. M. Belcher and A. Zsarnovszky
Estrogenic Actions in the Brain: Estrogen, Phytoestrogens, and Rapid Intracellular Signaling Mechanisms
J. Pharmacol. Exp. Ther.,
November 1, 2001;
299(2):
408 - 414.
[Abstract]
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R. Bi, M. R. Foy, R.-M. Vouimba, R. F. Thompson, and M. Baudry
Cyclic changes in estradiol regulate synaptic plasticity through the MAP kinase pathway
PNAS,
October 25, 2001;
(2001)
241507698.
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E. R. Levin
Genome and Hormones: Gender Differences in Physiology: Invited Review: Cell localization, physiology, and nongenomic actions of estrogen receptors
J Appl Physiol,
October 1, 2001;
91(4):
1860 - 1867.
[Abstract]
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C. B. Wade, S. Robinson, R. A. Shapiro, and D. M. Dorsa
Estrogen Receptor (ER){{alpha}} and ER{beta} Exhibit Unique Pharmacologic Properties When Coupled to Activation of the Mitogen-Activated Protein Kinase Pathway
Endocrinology,
June 1, 2001;
142(6):
2336 - 2342.
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P. Maher
How Protein Kinase C Activation Protects Nerve Cells from Oxidative Stress-Induced Cell Death
J. Neurosci.,
May 1, 2001;
21(9):
2929 - 2938.
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O. Nicole, C. Ali, F. Docagne, L. Plawinski, E. T. MacKenzie, D. Vivien, and A. Buisson
Neuroprotection Mediated by Glial Cell Line-Derived Neurotrophic Factor: Involvement of a Reduction of NMDA-Induced Calcium Influx by the Mitogen-Activated Protein Kinase Pathway
J. Neurosci.,
May 1, 2001;
21(9):
3024 - 3033.
[Abstract]
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R. D. Brinton
Cellular and Molecular Mechanisms of Estrogen Regulation of Memory Function and Neuroprotection Against Alzheimer's Disease: Recent Insights and Remaining Challenges
Learn. Mem.,
May 1, 2001;
8(3):
121 - 133.
[Abstract]
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C. Harms, M. Lautenschlager, A. Bergk, J. Katchanov, D. Freyer, K. Kapinya, U. Herwig, D. Megow, U. Dirnagl, J. R. Weber, et al.
Differential Mechanisms of Neuroprotection by 17 {beta}-Estradiol in Apoptotic versus Necrotic Neurodegeneration
J. Neurosci.,
April 15, 2001;
21(8):
2600 - 2609.
[Abstract]
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F. C. Barone, E. A. Irving, A. M. Ray, J. C. Lee, S. Kassis, S. Kumar, A. M. Badger, R. F. White, M. J. McVey, J. J. Legos, et al.
SB 239063, a Second-Generation p38 Mitogen-Activated Protein Kinase Inhibitor, Reduces Brain Injury and Neurological Deficits in Cerebral Focal Ischemia
J. Pharmacol. Exp. Ther.,
April 13, 2001;
296(2):
312 - 321.
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P. M. Wise, D. B. Dubal, M. E. Wilson, S. W. Rau, and M. Bottner
Minireview: Neuroprotective Effects of Estrogen--New Insights into Mechanisms of Action
Endocrinology,
March 1, 2001;
142(3):
969 - 973.
[Abstract]
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R. Clarke, F. Leonessa, J. N. Welch, and T. C. Skaar
Cellular and Molecular Pharmacology of Antiestrogen Action and Resistance
Pharmacol. Rev.,
March 1, 2001;
53(1):
25 - 72.
[Abstract]
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L. D. McCullough, N. J. Alkayed, R. J. Traystman, M. J. Williams, and P. D. Hurn
Postischemic Estrogen Reduces Hypoperfusion and Secondary Ischemia After Experimental Stroke
Stroke,
March 1, 2001;
32(3):
796 - 802.
[Abstract]
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D. B. Dubal, H. Zhu, J. Yu, S. W. Rau, P. J. Shughrue, I. Merchenthaler, M. S. Kindy, and P. M. Wise
Estrogen receptor alpha , not beta , is a critical link in estradiol-mediated protection against brain injury
PNAS,
February 1, 2001;
(2001)
41483198.
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J. E. Cavanaugh, J. Ham, M. Hetman, S. Poser, C. Yan, and Z. Xia
Differential Regulation of Mitogen-Activated Protein Kinases ERK1/2 and ERK5 by Neurotrophins, Neuronal Activity, and cAMP in Neurons
J. Neurosci.,
January 15, 2001;
21(2):
434 - 443.
[Abstract]
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D. B. Dubal and P. M. Wise
Neuroprotective Effects of Estradiol in Middle-Aged Female Rats
Endocrinology,
January 1, 2001;
142(1):
43 - 48.
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P. S. Green, S.-H. Yang, K. R. Nilsson, A. S. Kumar, D. F. Covey, and J. W. Simpkins
The Nonfeminizing Enantiomer of 17{beta}-Estradiol Exerts Protective Effects in Neuronal Cultures and a Rat Model of Cerebral Ischemia
Endocrinology,
January 1, 2001;
142(1):
400 - 406.
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T. K. Toung, P. D. Hurn, R. J. Traystman, F. E. Sieber, and F. M. Faraci
Estrogen Decreases Infarct Size After Temporary Focal Ischemia in a Genetic Model of Type 1 Diabetes Mellitus Editorial Comment
Stroke,
November 1, 2000;
31(11):
2701 - 2706.
[Abstract]
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A. J. Bruce-Keller, J. L. Keeling, J. N. Keller, F. F. Huang, S. Camondola, and M. P. Mattson
Antiinflammatory Effects of Estrogen on Microglial Activation
Endocrinology,
October 1, 2000;
141(10):
3646 - 3656.
[Abstract]
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P. M. Wise and D. B. Dubal
Estradiol Protects Against Ischemic Brain Injury in Middle-Aged Rats
Biol Reprod,
October 1, 2000;
63(4):
982 - 985.
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M. Razandi, A. Pedram, and E. R. Levin
Plasma Membrane Estrogen Receptors Signal to Antiapoptosis in Breast Cancer
Mol. Endocrinol.,
September 1, 2000;
14(9):
1434 - 1447.
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J. Font de Mora and M. Brown
AIB1 Is a Conduit for Kinase-Mediated Growth Factor Signaling to the Estrogen Receptor
Mol. Cell. Biol.,
July 15, 2000;
20(14):
5041 - 5047.
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H. SAWADA, M. IBI, T. KIHARA, M. URUSHITANI, K. HONDA, M. NAKANISHI, A. AKAIKE, and S. SHIMOHAMA
Mechanisms of antiapoptotic effects of estrogens in nigral dopaminergic neurons
FASEB J,
June 1, 2000;
14(9):
1202 - 1214.
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K. Sampei, S. Goto, N. J. Alkayed, B. J. Crain, K. S. Korach, R. J. Traystman, G. E. Demas, R. J. Nelson, P. D. Hurn, and S. Piper Duckles
Stroke in Estrogen Receptor-{alpha}-Deficient Mice • Editorial Comment
Stroke,
March 1, 2000;
31(3):
738 - 744.
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N. J. Alkayed, S. J. Murphy, R. J. Traystman, P. D. Hurn, and V. M. Miller
Neuroprotective Effects of Female Gonadal Steroids in Reproductively Senescent Female Rats Editorial Comment
Stroke,
January 1, 2000;
31(1):
161 - 168.
[Abstract]
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D. B. Dubal, P. J. Shughrue, M. E. Wilson, I. Merchenthaler, and P. M. Wise
Estradiol Modulates bcl-2 in Cerebral Ischemia: A Potential Role for Estrogen Receptors
J. Neurosci.,
August 1, 1999;
19(15):
6385 - 6393.
[Abstract]
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T. de Jager, T. Pelzer, S. Muller-Botz, A. Imam, J. Muck, and L. Neyses
Mechanisms of Estrogen Receptor Action in the Myocardium. RAPID GENE ACTIVATION VIA THE ERK1/2 PATHWAY AND SERUM RESPONSE ELEMENTS
J. Biol. Chem.,
July 20, 2001;
276(30):
27873 - 27880.
[Abstract]
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D. B. Dubal, H. Zhu, J. Yu, S. W. Rau, P. J. Shughrue, I. Merchenthaler, M. S. Kindy, and P. M. Wise
Estrogen receptor alpha , not beta , is a critical link in estradiol-mediated protection against brain injury
PNAS,
February 13, 2001;
98(4):
1952 - 1957.
[Abstract]
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R. Bi, G. Broutman, M. R. Foy, R. F. Thompson, and M. Baudry
The tyrosine kinase and mitogen-activated protein kinase pathways mediate multiple effects of estrogen in hippocampus
PNAS,
March 28, 2000;
97(7):
3602 - 3607.
[Abstract]
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R. Bi, M. R. Foy, R.-M. Vouimba, R. F. Thompson, and M. Baudry
Cyclic changes in estradiol regulate synaptic plasticity through the MAP kinase pathway
PNAS,
November 6, 2001;
98(23):
13391 - 13395.
[Abstract]
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