IL32 and rheumatoid arthritis: IL-32 is involved in the pathogenesis of a number of chronic inflammatory diseases and allergic diseases including but not limited to rheumatoid arthritis (RA), chronic obstructive pulmonary disease (COPD), COPD exacerbation, inflammatory bowel disease (IBD), chronic rhinosinusitis and asthma (Table 1) [1, 6, 21, 33, 34].