Botulinum toxin: A review of the mode of action in migraine

Botulinum toxin: A review of the mode of action in migraine

Botulinum toxin serotype A (BoNT/A) was originally used in neurology for the treatment of dystonia and blepharospasms, but is now clinically used worldwide for the treatment of chronic migraine. Still, the possible mode of action of BoNT/A in migraine is not fully known. However, the mode of action...

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Bibliographic Details
Published in:Acta neurologica Scandinavica Vol. 137; no. 5; pp. 442 - 451
Main Authors: Do, T. P., Hvedstrup, J., Schytz, H. W.
Format: Journal Article
Language:English
Published: Denmark Hindawi Limited 01-05-2018
Subjects:
Animals
Axonal transport
Botulinum toxin
Botulinum toxin type A
Botulinum Toxins, Type A - therapeutic use
Dystonia
Headache
Humans
Migraine
Migraine Disorders - drug therapy
mode of action
Neuromodulation
Neuromuscular Agents - therapeutic use
neurotransmitter
Neurotransmitter release
Pain
Pain - drug therapy
Pain Management - methods
receptor
botulinum toxin
migraine
receptor
mode of action
axonal transport
headache
neurotransmitter
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Summary:Botulinum toxin serotype A (BoNT/A) was originally used in neurology for the treatment of dystonia and blepharospasms, but is now clinically used worldwide for the treatment of chronic migraine. Still, the possible mode of action of BoNT/A in migraine is not fully known. However, the mode of action of BoNT/A has been investigated in experimental pain as well as migraine models, which may elucidate the underlying mechanisms in migraine. The aim of this study was to review studies on the possible mode of action of BoNT/A in relation to chronic migraine treatment. Observations suggest that the mode of action of BoNT/A may not be limited to the injection site, but also includes anatomically connected sites due to axonal transport. The mechanisms behind the effect of BoNT/A in chronic migraine may also include modulation of neurotransmitter release, changes in surface expression of receptors and cytokines as well as enhancement of opioidergic transmission. Clinical and experimental studies with botulinum toxin in the last decade have advanced our understanding of headache and other pain states. More research into botulinum toxin as treatment for headache is warranted as it can be an attractive alternative for patients who do not respond positively to other drugs.
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ISSN:0001-6314
1600-0404
DOI:10.1111/ane.12906