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Retrograde axonal transport of LIF is increased by peripheral nerve injury: Correlation with increased LIF expression in distal nerve

NeuronPublished 1 January 1994Open access
Rory Curtis, Steven S. Scherer, Robert Somogyi, Krystyna M. Adryan, Nancy Y. Ip, Yuan Zhu
Citations267
SJR quartileQ1
SJR score6.75
SNIP2.95
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TL;DR

The correlation between LIF expression and increased retrograde transport following injury suggests that LIF plays a role in peripheral nerve regeneration, indicating a specific receptor-mediated mechanism.

Abstract

Leukemia inhibitory factor (LIF) is a cytokine that affects the survival and differentiation of certain neuronal populations in vitro. To identify LIF-responsive neurons in the adult rat, we have demonstrated retrograde axonal transport of 125I-LIF to sensory and motor neurons. The accumulation of 125I-LIF by both cell types was significantly increased by prior sciatic nerve crush. Retrograde transport of 125I-LIF was inhibited by excess unlabeled LIF but not by related cytokines, indicating a specific receptor-mediated mechanism. Northern blot analysis revealed LIF expression in peripheral nerve that was increased in distal segments after axotomy. The correlation between LIF expression and increased retrograde transport following injury suggests that LIF plays a role in peripheral nerve regeneration.

Keywords

Immunology and MicrobiologyMedicineBiochemistry, Genetics and Molecular Biology