Screening of NB cell lines by RT-PCR analyses revealed specific CXCR7 expression in N-type and S-type NB cell lines, rather than in the most undifferentiated I-type NB cell lines [53], suggesting an association of CXCR7 expression with neuronal-and/or glial/schwannian NB cell phenotype. Here, ACKR3 is linked to neuroblastoma.