Fixation of transsynaptically transported WGA-HRP and fluorescent dyes used in combination.

Autor: Herzog J; Department of Physiology, Christian-Albrechts-Universität zu Kiel, Olshausenstrasse 40, D-24098, Kiel, Germany., Kümmel H
Jazyk: angličtina
Zdroj: Journal of neuroscience methods [J Neurosci Methods] 2000 Sep 15; Vol. 101 (2), pp. 149-56.
DOI: 10.1016/s0165-0270(00)00261-2
Abstrakt: The transsynaptic transport of WGA-HRP is a powerful tool for the identification of last order interneurones in the spinal cord, but differentiation of primarily labelled motoneurones from transsynaptically labelled interneurones can be difficult. We therefore combined the transsynaptic labelling of interneurones with WGA-HRP and the labelling of motoneurones with fluorescent dyes (fluorogold, red beads, fast blue, DAPI) by injecting a mixture of the tracers into the nervi mediani of rats. The influence of different fixatives on the simultaneous preservation of WGA-HRP and fluorescence is evaluated. It is shown that, of several perfusion protocols, only perfusion with paraformaldehyde in addition to 1.4% lysine and 0.23% periodate allowed simultaneous visualisation of transsynaptic WGA-HRP and fluorescent dyes.
Databáze: MEDLINE