ProBDNF inhibits proliferation, migration and differentiation of mouse neural stem cells

Brain Research
Jia-Yi LiXin-Fu Zhou

Abstract

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 10ng/mL. The migration of NSCs was also reduced by exogenous proBDNF treatment in a concentration-dependent manner (by 90% at 10ng/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...Continue Reading

References

Jun 3, 2005·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Henry K TengBarbara L Hempstead
Jun 13, 2006·Cerebral Cortex·Steven M PollardAustin Smith
Apr 26, 2011·Methods in Molecular Biology·Johan van MeerlooJacqueline Cloos

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Citations

Nov 4, 2017·International Journal of Molecular Sciences·Tadahiro NumakawaNaoki Adachi
Jul 7, 2019·Neurotoxicity Research·Zhe WangRu-Ping Dai

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