کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5736506 | 1613777 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nogo-receptor 1 antagonization in combination with neurotrophin-4/5 is not superior to single factor treatment in promoting survival and morphological complexity of cultured dopaminergic neurons
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کلمات کلیدی
ventral mesencephalicPBSNT4/5GFAPNEP1-40HBSSp75MAP2GDNFNgR1TrkBventral mesencephalon - mesencephalon شکمیParkinson’s disease - بیماری پارکینسونTroy - ترویtyrosine hydroxylase - تیروزین هیدروکسیلازhorse serum - سرب اسبGlial cell line-derived neurotrophic factor - فاکتور نوروتروفی مشتق از سلول گلیاییPhosphate buffered saline - فسفات بافر شورLINGO-1 - لینگو-1Hank’s balanced salt solution - محلول نمک متعادل هانکneurotrophin-4/5 - نوروتروفین 4/5Dopaminergic neurons - نورونهای دوپامینرژیکGlial fibrillary acidic protein - پروتئین اسیدی فیبریلاسیون گلایالmicrotubule-associated protein 2 - پروتئین مرتبط با میکروتوبول 2Cell culture - کشت سلول
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cell transplantation using ventral mesencephalic tissue is an experimental approach to treat Parkinson's disease. This approach is limited by poor survival of the transplants and the high number of dopaminergic neurons needed for grafting. Increasing the yield of dopaminergic neurons in donor tissue is of great importance. We have previously shown that antagonization of the Nogo-receptor 1 by NEP1-40 promoted survival of cultured dopaminergic neurons and exposure to neurotrophin-4/5 increased dopaminergic cell densities in organotypic midbrain cultures. We investigated whether a combination of both treatments offers a novel tool to further improve dopaminergic neuron survival. Rat embryonic ventral mesencephalic neurons grown as organotypic free-floating roller tube or primary dissociated cultures were exposed to neurotrophin-4/5 and NEP1-40. The combined and single factor treatment resulted in significantly higher numbers of tyrosine hydroxylase positive neurons compared to controls. Significantly stronger tyrosine hydroxylase signal intensity was detected by Western blotting in the combination-treated cultures compared to controls but not compared to single factor treatments. Neurotrophin-4/5 and the combined treatment showed significantly higher signals for the neuronal marker microtubule-associated protein 2 in Western blots compared to control while no effects were observed for the astroglial marker glial fibrillary acidic protein between groups, suggesting that neurotrophin-4/5 targets mainly neuronal cells. Finally, NEP1-40 and the combined treatment significantly augmented tyrosine hydroxylase positive neurite length. Summarizing, our findings substantiate that antagonization of the Nogo-receptor 1 promotes dopaminergic neurons but does not further increase the yield of dopaminergic neurons and their morphological complexity when combined with neurotrophin-4/5 hinting to the idea that these treatments might exert their effects by activating common downstream pathways.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1668, 1 August 2017, Pages 56-64
Journal: Brain Research - Volume 1668, 1 August 2017, Pages 56-64
نویسندگان
Stefanie Seiler, Stefano Di Santo, Sebastian Sahli, Lukas Andereggen, Hans Rudolf Widmer,