Referenced in: none

Automatically associated channels: Cav3.2

Title: CACNA1H antibodies associated with headache with neurological deficits and cerebrospinal fluid lymphocytosis (HaNDL).

Authors: Murat Kürtüncü, Dilaver Kaya, Luigi Zuliani, Ece Erdag, Sema Içöz, Elif Ugurel, Filiz Cavus, Nese Aysit, Omer Birisik, Angela Vincent, Mefkure Eraksoy, Burçak Vural, Gülşen Akman-Demir, Erdem Tüzün

Journal, date & volume: Cephalalgia, 2013 Jan , 33, 123-9

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/23111027

Abstract
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.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).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.Our results support the notion that ion channel autoimmunity might at least partially contribute to HaNDL pathogenesis and occurrence of neurological symptoms.