The results in this paper indicate that purging by targeting the mitotic catastrophe signalling pathway in CML and AML metastases-contaminated ovarian cortex tissue intended for fertility preservation purposes is possible by a short-term incubation with GSK1070916, a specific AURKB/C inhibitor. The gene discussed is AURKB; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.