IL4 and myasthenia gravis: It can produce anti-inflammatory factors and neuroprotective factors, such as interleukin-10 (IL-10), interleukin-4 (IL-4), brain-derived neurotrophic factor (BDNF), and insulin-like growth factor 1 (IGF-1), to enhance the phagocytic action of MG on Aβ, playing an immune elimination role in the brain to suppress inflammation, and to promote the repair and regeneration of CNS tissue, improving disease progression.