The cell lines SH-SY5Y (ATCC CRL-2266) and SK-N-BE(2) (ATCC CRL-2271) were chosen for the xenograft studies. SH-SY5Y is a TP53 wild-type, non-NMYC-amplified cell line that shows no chromosome 1p loss of heterozygosity and is sensitive to chemotherapy. The SK-N-BE(2) cell line shows high resistance to a wide range of chemotherapeutic agents and is characterized by NMYC amplification, TP53 mutation (p.C135F) and chromosome 1p loss of heterozygosity [48 (link)]. Cells were grown in a 1:1 mixture of Eagle's Minimum Essential Medium and Ham’s F12 (Sigma), supplemented with 10% fetal bovine serum (PAA), Glutamax (Gibco), non-essential amino acids (Sigma) and penicillin/streptomycin/amphotericin (Sigma).
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