Labelling of Interneurones by Retrograde Transsynaptic Transport of Horseradish Peroxidase from Motoneurones in Rats and Cats

Overview

Journal Neurosci Lett

Specialty Neurology

Date 1984 Mar 9

PMID 6547216

Citations 19

Authors

P J Harrison

H Hultborn

E Jankowska

R Katz

B Storai

D Zytnicki

Affiliations

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Abstract

Transsynaptic transport of conjugates of wheat germ agglutinin with horseradish peroxidase (WGA-HRP) has been studied in rats and cats. WGA-HRP was injected into a muscle nerve from which it was first transported to motoneurones and along sensory fibres, and secondarily to interneurones. More extensive labelling of interneurones occurred in preparations with only relevant ventral roots intact than in preparations with only dorsal roots intact, which indicates that the transsynaptic transport of WGA-HRP is primarily in the retrograde direction, i.e. from motoneurones to interneurones. Such a transport appeared to be considerably enhanced by neuronal activity.

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