کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5736504 1613777 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ProBDNF inhibits proliferation, migration and differentiation of mouse neural stem cells
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
ProBDNF inhibits proliferation, migration and differentiation of mouse neural stem cells
چکیده انگلیسی


- Mouse neural stem cells constitutively express proBDNF, p75NTR and Sortilin.
- ProBDNF inhibits neural stem cells proliferation, migration and differentiation.
- Anti-proBDNF antibody functions conversely to proBDNF in vitro.
- ProBDNF is a decisive factor for neural stem cells' fate into neurons and glia.

ProBDNF, a precursor of brain-derived neurotrophic factor (BDNF), is an important regulator of neurodegeneration, hippocampal long-term depression, and synaptic plasticity. ProBDNF and its receptors pan-neurotrophin receptor p75 (p75NTR), vps10p domain-containing receptor Sortilin and tropomyosin receptor kinase B (TrkB) are expressed in neuronal and glial cells. The role of proBDNF in regulation of neurogenesis is not fully defined. This study aims to uncover the function of proBDNF in regulating the differentiation, migration and proliferation of mouse neural stem cells (NSCs) in vitro. We have found that proBDNF and its receptors are constitutively expressed in NSCs when assessed by immunocytochemistry and western blotting. MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay showed that exogenous proBDNF treatment reduced mouse NSCs viability by 38% at 10 ng/mL. The migration of NSCs was also reduced by exogenous proBDNF treatment in a concentration-dependent manner (by 90% at 10 ng/mL) but increased by anti-proBDNF antibody treatment (by 50%). BrdU (5-Bromo-2′-Deoxyuridine) incorporation was performed for detection of newborn cells. We have found that proBDNF significantly inhibited proliferation of NSCs and reduced the number of differentiated neurons, oligodendrocytes and astrocytes, while anti-proBDNF antibody treatment promoted proliferation and differentiation of NSCs. In conclusion, proBDNF may oppose the functions of mature BDNF by inhibiting the proliferation, differentiation and migration of NSCs during development. Conversely, anti-proBDNF antibody treatment promoted proliferation and differentiation of NSCs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1668, 1 August 2017, Pages 46-55
نویسندگان
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