LIN28A and neoplasm: Lin28 could affect mast cell differentiation and promote the mast cell malignancy.Lin28 promoted tumor growth via enhancing the development of T cells, B cells, and natural killer T (NKT).Lin28 regulated the expression of the anti-inflammatory cytokine interleukin-6 (IL-6) via inhibiting let-7 or depending on hnRNP A1 expression.