CACNA1H antibodies associated with headache with neurological deficits and cerebrospinal fluid lymphocytosis (HaNDL)
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2013Author
Kürtüncü, MuratKaya, Dilaver
Zuliani, Luigi
Erdağ, Ece
İçöz, Sema
Uğurel, Elif
Çavuş, Filiz
Ayşit, Neşe
Birışık, Ömer
Vincent, Angela
Eraksoy, Mefkure
Vural, Burçak
Akman Demir, Gülşen
Tüzün, Erdem
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Kürtüncü, M., Kaya, D., Zuliani, L., Erdağ, E., İçöz, S., Uğurel, E. ... Tüzün, E. (2013). CACNA1H antibodies associated with headache with neurological deficits and cerebrospinal fluid lymphocytosis (HaNDL). Cephalalgia, 33(2), 123-129. https://dx.doi.org/10.1177/0333102412463494Abstract
Background: Patients with the syndrome of headache with neurological deficits and lymphocytosis (HaNDL) typically present with recurrent and temporary attacks of neurological symptoms and cerebrospinal fluid lymphocytosis. Aim and methods: To identify potential HaNDL-associated antibodies directed against neuronal surface and/or synapse antigens, sera of four HaNDL patients and controls were screened with indirect immunohistochemistry, immunofluorescence, cell-based assay, radioimmunoassay, protein macroarray and enzyme-linked immunosorbent assay (ELISA). Results: Although HaNDL sera did not yield antibodies to any of the well-characterized neuronal surface or synapse antigens, protein macroarray and ELISA studies showed high-titer antibodies to a subunit of the T-type voltage-gated calcium channel (VGCC), CACNA1H, in sera of two HaNDL patients. Conclusion: Our results support the notion that ion channel autoimmunity might at least partially contribute to HaNDL pathogenesis and occurrence of neurological symptoms.
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