Immunocytochemical localization of gastrin-releasing peptide/bombesin-like immunoreactive neurons in insects

1. Histochemistry. 1984;81(2):133-8.

Immunocytochemical localization of gastrin-releasing peptide/bombesin-like
immunoreactive neurons in insects.

Veenstra JA, Yanaihara N.

GRP/bombesin-like immunoreactive material was immunocytochemically detected in
neurons of seven insect species belonging to seven orders, while such neurons
were not found in three insect species belonging to two other orders. In some
insect species certain neurons were found in corresponding places and
approximately the same numbers. It seems likely that such neurons have a common
evolutionary origin and are homologous. The fact that the GRP-antiserum reveals
such homologous neurons in species belonging to different orders, suggests that
the part of the GRP/bombesin-like peptide recognized by the antiserum has been
relatively stable during evolution. As the GRP-antiserum had to be used in much
higher concentrations on insect tissue than for GRP endocrine cells in chicken
proventriculus, the chemical resemblance of the insect peptide(s) to GRP and
bombesin may be limited.

DOI: 10.1007/BF00490106
PMID: 6386755 [Indexed for MEDLINE]

Auteurs Bordeaux Neurocampus