IL17A and rheumatoid arthritis: Noncoding RNA: For example, long noncoding RNA HOTAIR increases chondrocyte proliferation, decreases inflammatory cytokine from chondrocytes, and alleviates RA in the animal model [71], while micro RNA-23a (miR-23a) inhibits IL-17-mediated proinflammatory mediator expression via targeting IκB kinase α (IKKα) in articular chondrocytes [32].