کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10956860 | 1099460 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neurotractin/kilon promotes neurite outgrowth and is expressed on reactive astrocytes after entorhinal cortex lesion
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
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چکیده انگلیسی
The IgLON subgroup of the immunoglobulin superfamily consists of four members that are thought to be important in neural cell-cell recognition. Here, we cloned and characterized the murine IgLON subgroup member neurotractin/kilon, in the context of brain development and axonal regeneration. Neurotractin/kilon was found to be upregulated during brain development and is expressed on neurites of primary hippocampal neurons. To elucidate a potential role for neurotractin/kilon during regeneration in the CNS, we performed lesions in the entorhinal cortex, and showed that the expression of neurotractin/kilon is induced on reactive astrocytes. Notably, the expression on reactive astrocytes appears specifically in the denervated outer molecular layer of the dentate gyrus, where regenerative axon sprouting occurs. In vitro assays demonstrated that neurotractin/kilon attracts hippocampal axons in the stripe assay and that astroglial neurotractin/kilon promotes neurite outgrowth. These results suggest a function for neurotractin/kilon as a trans-neural growth-promoting factor for outgrowing axons following hippocampal denervation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular and Cellular Neuroscience - Volume 29, Issue 4, August 2005, Pages 580-590
Journal: Molecular and Cellular Neuroscience - Volume 29, Issue 4, August 2005, Pages 580-590
نویسندگان
Michael Schäfer, Anja U. Bräuer, Nicolai E. Savaskan, Fritz G. Rathjen, Thomas Brümmendorf,