CXCL8 and anaplastic large cell lymphoma: When we analysed interleukins IL-8, IL-10, IL-21 and IL-22, which have been reported to play a role in autocrine or paracrine stimulation of ALCL, we found that IL-8 is reduced and IL-22 is induced by miR-155 over-expression; IL-10 and IL-21 levels remained unchanged.