Differential immunolabeling for electron microscopy of diverse peptidergic neuronsM Maegawa, S Hisano, Y Tsuruo, S Katoh, J Nakanishi, M Chikamori-Aoyama and S Daikoku
We describe a simple and reliable method for differential immunolabeling of pre- and post-synaptic signal peptides at the ultrastructural level. Hypothalamic tissues of rats, including the suprachiasmatic nucleus, were cut on a Vibratome. Visualization of the immunolabeling of somatostatin (SRIH) and vasoactive intestinal polypeptide (VIP) was performed with avidin-biotin-peroxidase- diaminobenzidine (DAB). The end product of the DAB to VIP was further silver-intensified in a physical processing using silver nitrate, and the silver grains were finally substituted for gold. DAB-labeled SRIH fibers synapse on gold-labeled VIP perikarya and dendrites in the suprachiasmatic nucleus.
Volume 35,
Issue 2,
pp. 251-255,
02/01/1987
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