High risk of cancer in autoimmune necrotizing myopathies: usefulness of myositis specific antibody.
Fiche publication
Date publication
août 2016
Journal
Brain : a journal of neurology
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BOUVIER Anne-Marie, Dr JOOSTE Valérie
Tous les auteurs :
Allenbach Y, Keraen J, Bouvier AM, Jooste V, Champtiaux N, Hervier B, Schoindre Y, Rigolet A, Gilardin L, Musset L, Charuel JL, Boyer O, Jouen F, Drouot L, Martinet J, Stojkovic T, Eymard B, Laforêt P, Behin A, Salort-Campana E, Fain O, Meyer A, Schleinitz N, Mariampillai K, Grados A, Benveniste O
Lien Pubmed
Résumé
Cancer can occur in patients with inflammatory myopathies. This association is mainly observed in dermatomyositis, and myositis-specific antibodies have allowed us to delineate patients at an increased risk. Malignancy is also reported in patients with necrotizing autoimmune myopathies, but the risk remains elusive. Anti-signal recognition particle or anti-HMGCR antibodies have been specifically associated with necrotizing autoimmune myopathies. We aimed at screening the incidence of cancer in necrotizing autoimmune myopathies. A group of patients (n = 115) with necrotizing autoimmune myopathies with or without myositis-specific antibodies was analysed. Malignancy occurred more frequently in seronegative necrotizing autoimmune myopathies patients and in HMGCR-positive patients compared to anti-signal recognition particle positive patients. Synchronous malignancy was diagnosed in 21.4% and 11.5% of cases, respectively, and incidence of cancer was higher compared to the general population in both groups. No specific type of cancer was predominant. Patients suffering from a synchronous cancer had a decreased median survival time. Cancer screening is necessary in seronegative necrotizing autoimmune myopathies and in HMGCR-positive patients but not in anti-signal recognition particle-positive patients.
Référence
Brain. 2016 Aug;139(Pt 8):2131-5