These WWOXd cells included human breast MDA-MB-231 cancer cells35, human MDA-MB-435s cancer cells35, human neuroblastoma NB69 cells, mouse breast 4T1 cancer cells16,33, mouse melanoma B16F10 cells16,33, human neurofibromatosis YMY-NF1 cells (from the same patient for the normal skin fibroblasts), human glioblastoma U87-MG cells, and mouse L929R fibroblasts. This evidence concerns the gene NF1 and neurofibromatosis.