Abstract：
:Temporal lobe epilepsy (TLE) is often accompanied by granule cell dispersion (GCD), a migration defect of granule cells in the dentate gyrus. We have previously shown that a decrease in the expression of reelin, an extracellular matrix protein important for neuronal positioning, is associated with the development of GCD in TLE patients. Here, we used unilateral intrahippocampal injection of kainate (KA) in adult mice which is also associated with GCD formation and a decrease of reelin expression. In this mouse epilepsy model we aimed to prevent GCD development by the application of exogenous reelin. As a prerequisite we analyzed whether the reelin signaling transduction cascade was preserved in the KA-injected hippocampus. Using in situ hybridization and Western blot analysis we found that the expression of the reelin signaling components, apolipoprotein E receptor 2, the very-low-density lipoprotein receptor and the intracellular adaptor protein disabled 1, was maintained in dentate granule cells after KA injection. Next, recombinant reelin was infused into the KA-injected hippocampus by osmotic minipumps over a period of 2 weeks. Quantitative analysis of granule cell layer width revealed a significant reduction of GCD in reelin-treated, but not in saline-infused animals when compared to KA injection alone. Our findings highlight the crucial role of reelin for the maintenance of granule cell lamination in the dentate gyrus of adult mice and show that a reelin deficiency is causally involved in GCD development.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Müller MC,Osswald M,Tinnes S,Häussler U,Jacobi A,Förster E,Frotscher M,Haas CAdoi
10.1016/j.expneurol.2008.12.029subject
Has Abstractpub_date
2009-04-01 00:00:00pages
390-7issue
2eissn
0014-4886issn
1090-2430pii
S0014-4886(08)00482-2journal_volume
216pub_type
杂志文章abstract：:Given the profound negative public health effects of major depressive disorder (MDD), and data suggesting only modest effectiveness of existing psychological and pharmacological treatments for this condition, there has been increasing interest in exploring the antidepressant potential of non-pharmacological, brain-bas...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
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abstract：:The age-dependent effects of sympathetic superior cervical ganglionectomy on smooth muscle alpha-adrenoceptor contractile responses were investigated in Müller's muscle in the superior eyelid of the Sprague-Dawley rat. Ganglionectomies in juvenile (32 days) and adult (70 days) rats produced sustained sympathetic dener...
journal_title：Experimental neurology
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journal_title：Experimental neurology
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journal_title：Experimental neurology
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journal_title：Experimental neurology
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journal_title：Experimental neurology
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.01.028
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journal_title：Experimental neurology
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journal_title：Experimental neurology
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journal_title：Experimental neurology
pub_type： 杂志文章
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journal_title：Experimental neurology
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journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：1991-05-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
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journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：2012-02-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7074
更新日期：1999-07-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：1991-02-01 00:00:00
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journal_title：Experimental neurology
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pub_type： 杂志文章
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journal_title：Experimental neurology
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更新日期：1994-03-01 00:00:00
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journal_title：Experimental neurology
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journal_title：Experimental neurology
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