[The immune system and primary headache syndromes]
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Updated: Aug 12, 2026

Modeling Neural Immune Signaling of Episodic and Chronic Migraine Using Spreading Depression In Vitro
Published on: June 13, 2011
1Neurologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, Klinikum Grosshadern, Marchioninistrasse 15, 81377 München. moem@nefo.med.uni-muenchen.de
Abstract:
The association between pain and inflammation and certain clinical signs led physicians to suspect a connection between immunological mechanisms and headache syndromes even years ago. This review intends to give an overview of the literature which deals with immunological mechanisms in headache syndromes--with divergent results. Thus, a food allergy as a cause of migraine only seems to be relevant in a few isolated cases. Immunoglobulins or infections do not seem to play a role. Whether the complement system, auto-antibodies, immune cells or cytokines are involved in migraine pathophysiology, still remains to be determined. With regards to cluster headache, a participation of the immune system seems more probable. Although a systemic vasculitis or auto-antibodies probably do not contribute to cluster headache pathophysiology, reports of an immune activation, especially of T-cells, predominate the literature. Nevertheless, the evidence for an immunogenically triggered cluster attack is still lacking. In summary, only a mutual modulation of the immune and the pain system can be assumed with certainty.
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