S100A7 and myasthenia gravis: Although there’s no direct evidence for IL-4 receptor expression in MG, pro-inflammatory proteins like IFNγ, S100A9, S100A7, CXCL10, and Lysozyme C (LYZ) increase upon stimulation of MIO-M1 cells with IL-4, indicating that IL-4 has a pro-inflammatory influence in MG (Schmalen et al., 2021).