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J Pharm Pharmacol. 1997 Jan;49(1):97-101.

Reversible blockade of retrograde axonal transport in the rat sciatic nerve by vincristine.

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Department of Pharmacy, University of Queensland, Brisbane, Australia.


Altered axoplasmic transport has been implicated as a contributing factor in neuropathic pain states. Treatments which produce transient axoplasmic transport blockade have shown initial promise as therapeutic procedures in the management of chronic neuropathic pain. The present study evaluated the capacity of the vinca alkaloid, vincristine to produce reversible blockade of retrograde axoplasmic transport. Results indicated that intraneural administration of 10(-5)M vincristine resulted in blockade of retrograde axoplasmic transport of [3H]leucine 24 h following administration. Importantly, the effect reversed over the next four days and axoplasmic transport was re-instated fully at day five. The implications of these results are discussed in relation to the potential use of axoplasmic transport blocking agents in the management of chronic neuropathic pain.

[Indexed for MEDLINE]

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