NFKB1 and myasthenia gravis: Upregulation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) in a murine macrophage cell line caused a statistically significant increase in intracellular levels of both miR-30e-5p and miR-21-5p and promoted their packaging into exosomes, possibly explaining the finding of elevated serum levels in MG patients [27].