Получение рекомбинантных нейротрофинов человека для биомедицинских исследований

The genes of nerve growth factor (NGF), brain neurotrophic factor (BDNF) and human neurotrophic factor 3 (NT-3) were cloned and expressed in Escherichia coli. Methods of purification and renaturation of the proneurotrophins were developed. It was shown that the recombinant pro-NGF, pro-BDNF and pro-NT-3 induce a differentiation of chicken dorsal root ganglia cell culture.Клонированы гены фактора роста нервов (NGF), нейротрофического фактора головного мозга (BDNF) и нейротрофического фактора 3 (NT-3) человека и осуществлена их экспрессия в клетках Escherichia coli. Разработаны схемы очистки и ренатурации соответствующих пробелков. Продемонстрировано, что рекомбинантные про-NGF, про-BDNF, про-NT-3 оказывают дифференцирующее действие на культуру спинномозговых ганглиев эмбрионов кур

Production of human recombinant neurotrophins for biomedical studies

The genes of nerve growth factor (NGF), brain neurotrophic factor (BDNF) and human neurotrophic factor 3 (NT-3) were cloned and expressed in Escherichia coli. Methods of purification and renaturation of the proneurotrophins were developed. It was shown that the recombinant pro-NGF, pro-BDNF and pro-NT-3 induce a differentiation of chicken dorsal root ganglia cell culture

BDNF-TrkB axis regulates migration of the lateral line primordium and modulates the maintenance of mechanoreceptor progenitors.

BDNF and its specialized receptor TrkB are expressed in the developing lateral line system of zebrafish, but their role in this organ is unknown. To tackle this problem in vivo, we used transgenic animals expressing fluorescent markers in different cell types of the lateral line and combined a BDNF gain-of-function approach by BDNF mRNA overexpression and by soaking embryos in a solution of BDNF, with a loss-of-function approach by injecting the antisence ntrk2b-morpholino and treating embryos with the specific Trk inhibitor K252a. Subsequent analysis demonstrated that the BDNF-TrkB axis regulates migration of the lateral line primordium. In particular, BDNF-TrkB influences the expression level of components of chemokine signaling including Cxcr4b, and the generation of progenitors of mechanoreceptors, at the level of expression of Atoh1a-Atp2b1a