Oncotarget · 2016
Proteomic identification of cyclophilin A as a potential biomarker and therapeutic target in oral submucous fibrosis.
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Yuan Yao, Hou Xiaohui, Feng Hui, Liu Rui, Xu Hao, Gong Wang, Deng Jing, Sun Chongkui, Gao Yijun, Peng Jieying, Wu Yingfang, Li Jiang, Fang Changyun, Chen Qianming
Аннотация
OBJECTIVES: The high concordance between systemic lupus erythematosus (SLE) and fibromyalgia (FM) suggests common underlying mechanisms related to pain and distress in both patient groups. Increasing evidence indicates that N-methyl-D-aspartate receptors (NMDARs) play a major role in the induction and maintenance of central sensitisation with chronic pain. In this study, we evaluated the role of anti-NMDAR antibodies in the development of FM in patients with SLE.
METHODS: Sera from 104 patients with SLE, 112 patients with FM, and 110 healthy controls were analysed to detect antibodies to the N-terminus of the 2B subunit of NMDARs (GluN2B). Subjects underwent clinical examination and neuropsychiatric evaluation, and completed a questionnaire regarding FM and neuropsychiatric symptoms.
RESULTS: Of the 104 patients with SLE, 18 (17.3%) had FM. The anti-GluN2B antibody titer was significantly higher in patients with SLE (p<0.001). Among patients with SLE, those with concomitant FM had higher anti-GluN2B antibody titers (p<0.05). The anti-GluN2B antibody titer was associated positively with the tender point count (p=0.016) and the widespread pain index (p=0.005), but not with other symptom measurements. Anti-GluN2B antibody-positive patients with SLE were more likely to have neuropsychiatric systemic lupus erythematosus (NPSLE) and concomitant FM (p<0.05). Multivariate analysis showed that the anti-GluN2B antibody was an independent predictor of concomitant FM and NPSLE.
CONCLUSIONS: To our knowledge, this report is the first to suggest that anti-NMDAR antibodies are associated with the pathogenesis of FM with SLE.
METHODS: Sera from 104 patients with SLE, 112 patients with FM, and 110 healthy controls were analysed to detect antibodies to the N-terminus of the 2B subunit of NMDARs (GluN2B). Subjects underwent clinical examination and neuropsychiatric evaluation, and completed a questionnaire regarding FM and neuropsychiatric symptoms.
RESULTS: Of the 104 patients with SLE, 18 (17.3%) had FM. The anti-GluN2B antibody titer was significantly higher in patients with SLE (p<0.001). Among patients with SLE, those with concomitant FM had higher anti-GluN2B antibody titers (p<0.05). The anti-GluN2B antibody titer was associated positively with the tender point count (p=0.016) and the widespread pain index (p=0.005), but not with other symptom measurements. Anti-GluN2B antibody-positive patients with SLE were more likely to have neuropsychiatric systemic lupus erythematosus (NPSLE) and concomitant FM (p<0.05). Multivariate analysis showed that the anti-GluN2B antibody was an independent predictor of concomitant FM and NPSLE.
CONCLUSIONS: To our knowledge, this report is the first to suggest that anti-NMDAR antibodies are associated with the pathogenesis of FM with SLE.