NUCLEOLIN and neuroblastoma: Salinomycin appeared efficient in inhibiting tumor cells of the pancreas [28], in colorectal cancer [29], chronic lymphocytic leukemia [30], glioblastoma [31], melanoma [32], etc. Recently, Wang et al., demonstrated that salinomycin suppresses the growth of human neuroblastoma cells, binding to the nucleolin target protein, which is a critical regulator of the neuroblastoma CSCs’ activity [33].