4.3 Article

Increased serum IL-2, IL-4, IL-5 and IL-12p70 levels in AChR subtype generalized myasthenia gravis

期刊

BMC IMMUNOLOGY
卷 23, 期 1, 页码 -

出版社

BMC
DOI: 10.1186/s12865-022-00501-8

关键词

Ultrasensitive measurement; Cytokines; Low concentration; Generalized myasthenia gravis; Anti-acetylcholine receptor antibody

资金

  1. National Natural Science Foundation of China [81870988, 82071410]
  2. Shanghai Municipal Science and Technology Major Project [2018SHZDZX01]

向作者/读者索取更多资源

Using ultrasensitive measurement, this study found elevated levels of IL-2, IL-4, IL-5, and IL-12p70 in patients with generalized myasthenia gravis (gMG) of the anti-acetylcholine receptor (AChR) subtype. Subgroup analysis revealed specific differences in cytokine levels based on the age of onset, MGFA classification, and disease duration. Serum cytokines with very low concentrations may serve as potential biomarkers in stratifying gMG patients in future prospective cohort studies.
Background Myasthenia gravis (MG) is an autoimmune disorder affecting neuromuscular junctions. Cytokines play important roles in facilitating the immune response and augmenting the pathogenic antibody production. The current study aims to sensitively characterize the serum levels of cytokines with very low concentration in generalized MG (gMG). Methods Using ultrasensitive single-molecule arrays (SIMOA), we measured serum IL-2, IL-4, IL-5 and IL-12p70 in 228 participants including 152 immunotherapy-naive anti-acetylcholine receptor (AChR) subtype gMG from Huashan MG registry and 76 age-matched healthy controls. Subgroup analysis was then performed by stratifying patients according to the onset ages, MGFA classification, disease duration at baseline. Results Serum IL-2, IL-4, IL-5 and IL-12p70 levels were significantly elevated in gMG compared to controls (0.179 pg/mL versus 0.011 pg/mL, P < 0.0001; 0.029 pg/mL versus 0.018 pg/mL, P = 0.0259; 0.215 pg/mL versus 0.143 pg/mL, P = 0.0007; 0.132 pg/mL versus 0.118 pg/mL, P = 0.0401). Subgroup analysis revealed that IL-2 levels were slightly elevated in gMG with MGFA II compared to MGFA III/IV (0.195 pg/mL versus 0.160 pg/mL, P = 0.022), as well as elevated levels of IL-2 (0.220 pg/mL versus 0.159 pg/mL, P = 0.0002) and IL-5 (0.251 pg/mL versus 0.181 pg/mL, P = 0.004) in late-onset gMG compared with the early-onset gMG. gMG patients with a long duration had a significant increased serum IL-12p70 than those with a short duration (0.163 pg/mL versus 0.120 pg/mL, P = 0.011). Conclusion Serum IL-2, IL-4, IL-5 and IL-12p70 levels were increased in AChR subtype gMG using ultrasensitive measurement. Serum cytokines with very low concentrations may provide as potential biomarkers in stratifying gMG patients in future prospective cohort studies.

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