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BDNF and NT-3 modulate expression and threonine phosphorylation of microtubule-associated protein 2 analogues, and
H Fukumitsu1, A Ohashi, A Nitta
1Laboratory of Molecular Biology, Gifu Pharmaceutical University, Japan.
Abstract:
Effects of brain-derived neurotrophic factor (BDNF) and neurotrophin (NT)-3 on the expression of structural or synapse-associated proteins were examined in the developing rat cerebral cortex. Following ventricular administration of BDNF or NT-3 at embryonic day (E) 16, expression of microtubule-associated protein (MAP) 2 of 280 kDa was enhanced at E18 and/or E20, and threonine phosphorylation of MAP2 analogues of 120 and 66 kDa was modulated in different ways. NT-3 basically altered the distribution of MAP2 proteins at E20. These findings suggest that NT-3 and BDNF play a role in regulating production and phosphorylation of MAP2 analogues during development of the rat cerebral cortex.