IL6 and neoplasm: There are several types of DC-vaccines, being the most frequently used the reinfusion of ex vivo derived DC pulsed with tumor-associated antigens (TAAs) or tumor cell lysates and stimulated with TNF-α, IL-1β, IL-6, and prostaglandin E2 (PGE2) (Lee et al., 2002; Koski et al., 2008; Anguille et al., 2014).