The cell lines THP-1 (monocytic leukemia), A431 (epidermoid carcinoma), A549 (lung epithelial carcinoma), HeLa (cervix epithelial adenocarcinoma), SH-Sy5y (neuroblastoma), MCF7 (breast adenocarcinoma), HCT116 (colon carcinoma) and HEK293 (embryonic kidney cells) were first tested for MAMDC1 mRNA expression in a quantitative qRT-PCR assay specific for the full-length isoform 1. This evidence concerns the gene MDGA2 and neuroblastoma.