Recently, it has been shown that GA promotes neurogenesis, neuroprotection and remyelination in MS lesions mediated by neurotrophic factors such as brain-derived neurotrophic factor (BDNF), Neurotrophin 3 and Neurotrophin 4 produced by GA-specific Th2 cells [11], [12], [13]. This evidence concerns the gene BDNF and myeloid sarcoma.