OBJECTIVE: To clarify whether the interferon-gamma (IFN-gamma) gene (IFNG) is associated with the histological phenotype of lupus nephritis. METHOD: We analysed microsatellite polymorphisms located within the first intron of the IFNG gene to determine the genotypes of patients with lupus nephritis WHO class IV (n=24), patients with WHO class V (n=12) and healthy controls (n=61). We used flow cytometric detection of intracellular cytokines to identify CD4(+) T cells producing IFN-gamma. Production of IFN-gamma by peripheral blood mononuclear cells after stimulation with phytohaemagglutinin was evaluated with an enzyme-linked immunosorbent assay. RESULT: The frequency of the IFNG allele 114 was significantly greater in WHO class V patients than in WHO class IV patients. Furthermore, the IFNG 114 +/+ genotype was more frequent in WHO class V than in WHO class IV patients. The level of IFN-gamma and the percentage of IFN-gamma-producing CD4(+) T cells were lower in individuals with genotype 114 +/+ than in individuals with genotype 114 -/-. CONCLUSION: The IFN-gamma gene is associated with the histological phenotype in lupus nephritis.
OBJECTIVE: To clarify whether the interferon-gamma (IFN-gamma) gene (IFNG) is associated with the histological phenotype of lupus nephritis. METHOD: We analysed microsatellite polymorphisms located within the first intron of the IFNG gene to determine the genotypes of patients with lupus nephritis WHO class IV (n=24), patients with WHO class V (n=12) and healthy controls (n=61). We used flow cytometric detection of intracellular cytokines to identify CD4(+) T cells producing IFN-gamma. Production of IFN-gamma by peripheral blood mononuclear cells after stimulation with phytohaemagglutinin was evaluated with an enzyme-linked immunosorbent assay. RESULT: The frequency of the IFNG allele 114 was significantly greater in WHO class V patients than in WHO class IV patients. Furthermore, the IFNG 114 +/+ genotype was more frequent in WHO class V than in WHO class IV patients. The level of IFN-gamma and the percentage of IFN-gamma-producing CD4(+) T cells were lower in individuals with genotype 114 +/+ than in individuals with genotype 114 -/-. CONCLUSION: The IFN-gamma gene is associated with the histological phenotype in lupus nephritis.
Authors: Hector Chinoy; Fiona Salway; Sally John; Noreen Fertig; Brian D Tait; Chester V Oddis; William E R Ollier; Robert G Cooper Journal: Ann Rheum Dis Date: 2007-04-03 Impact factor: 19.103
Authors: Andrea Fava; Jill Buyon; Chandra Mohan; Ting Zhang; H Michael Belmont; Peter Izmirly; Robert Clancy; Jose Monroy Trujillo; Derek Fine; Yuji Zhang; Laurence Magder; Deepak A Rao; Arnon Arazi; Celine C Berthier; Anne Davidson; Betty Diamond; Nir Hacohen; David Wofsy; William Apruzzese; Soumya Raychaudhuri; Michelle Petri Journal: JCI Insight Date: 2020-06-18
Authors: Xuemei Dong; Olivia Q Antao; Wenzhi Song; Gina M Sanchez; Krzysztof Zembrzuski; Fotios Koumpouras; Alexander Lemenze; Joe Craft; Jason S Weinstein Journal: Arthritis Rheumatol Date: 2021-01-29 Impact factor: 10.995