Diana Prieto-Peña, Fernanda Genre, Verónica Pulito-Cueto, Javier Gonzalo Ocejo-Vinyals, Belén Atienza-Mateo, Alejandro Muñoz-Jiménez, Francisco Ortiz-Sanjuán, Susana Romero-Yuste, Clara Moriano, Eva Galindez-Agirregoikoa, Itziar Calvo, Norberto Ortego-Centeno, Noelia Álvarez-Rivas, Jose A Miranda-Filloy, Juan Pablo Baldivieso-Achá, Ricardo Blanco, Oreste Gualillo, Javier Martín, Santos Castañeda, Raquel López-Mejías, Sara Remuzgo-Martínez, Miguel A González-Gay
OBJECTIVES: Two main different clinical phenotypes of giant cell arteritis (GCA) have been described, the classic cranial pattern and the extracranial large-vessel (LV) pattern. Since interferon gamma (IFNG) has shown to be a pivotal cytokine in the pathophysiology of GCA, our aim was to evaluate for the first time the influence of IFNG and IFNG receptor 1 (IFNGR1) polymorphisms in the different clinical phenotypes of GCA. METHODS: Two IFNG polymorphisms (rs2069718 G/A and rs1861493 A/G) and one polymorphism in IFNGR1 (rs1327474 G/A) were genotyped in 191 patients with biopsy-proven cranial GCA, 109 with extracranial LV-GCA and 490 healthy controls...
December 5, 2022: Clinical and Experimental Rheumatology