RRC ID 22826
Author Uno T, Sakamoto K, Isoyama Y, Hiragaki S, Uno Y, Kanamaru K, Yamagata H, Takagi M, Mizoguchi A, Takeda M.
Title Relationship between the expression of Rab family GTPases and neuropeptide hormones in the brain of Bombyx mori.
Journal Histochem Cell Biol
Abstract Rab proteins are small GTPases that play essential roles in vesicle transport. In this study, we examined the expression of Rab proteins and neuropeptide hormones in the brain of the silkworm, Bombyx mori. We produced antibodies against B. mori Rab1 and Rab14 in rabbits. Immunoblotting of samples of brain tissue from B. mori revealed a single band for each antibody. Rab1 and Rab14 immunohistochemical labeling in the brain of B. mori was restricted to neurons of the pars intercerebralis and dorsolateral protocerebrum. Rab1, Rab7 and Rab14 co-localized with bombyxin. Rab1 and Rab7 co-localized with eclosion hormone. Rab1 co-localized with prothoracicotropic hormone. These results suggest that Rab1, Rab7 and Rab14 may be involved in neuropeptide transport in the brain of B. mori. This is the first report on the specificity of Rab proteins for the secretion of different neuropeptides in insects.
Volume 139(2)
Pages 299-308
Published 2013-2-1
DOI 10.1007/s00418-012-1021-5
PMID 22922733
MeSH Animals Bombyx / enzymology Bombyx / metabolism* Brain / enzymology Brain / metabolism* Immunohistochemistry Insect Hormones / analysis Insect Hormones / biosynthesis* rab GTP-Binding Proteins / analysis rab GTP-Binding Proteins / biosynthesis* rab GTP-Binding Proteins / isolation & purification
IF 3.418
Times Cited 10