Little is known on strategies to prevent or to treat relapses occurring after haploidentical stem cell transplantation (haplo-HSCT) performed for the high-risk neuroblastoma (NB). We describe a 6-year-old male with refractory NB who relapsed 22 months after haplo-HSCT. A complete remission was obtained with a combination of immuno-chemotherapy based on donor NK cells transplants, IL2 infusions and temozolomide/topotecan. This case is an incentive to explore both the immediate therapeutic effect of haplo-graft provided via haplo-NK cells and the immunogenic platform that haplo-HSCT offers for future treatment. Our post-relapse strategy shows that chemo- and bio-treatment should be viewed as complementary therapeutic options.
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Kanold et al. (2011) studied this question.
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