MAPK1 and rheumatoid arthritis: The terms, "Regulation of ERK1 and ERK2 cascade", "Pattern recognition receptor signaling pathway", "T-cell proliferation", and "Neutrophil chemotaxis", based on biological process (Fig 3A) and the term "Lysosome" based on cellular component (Fig 3B) and a number of immunity-related terms, including "Cytokine-cytokine receptor interaction", "Rheumatoid Arthritis", and "Leishmaniasis" based on biological pathway (Fig 3C) are common in two groups.