In order to get mature dendritic cells (DC) that is a crucial prerequisite for success in tumor immunotherapy protocols. Herein, we assumed that administration of murine bone marrow (BM)-derived DC (BM-DC), loaded ex vivo with whole Ehrlich ascites carcinoma (EAC) lysate, in the context of systemic chemotherapy cyclophosphamide (CTX) to induce antitumor immune responses, may be a good strategy to improve the presentation of tumor-specific antigens to the immune system. In the first series of experiments, BM cells generated either from BM of naïve mice or from BM of EAC-bearing mice were cultured in the presence of GM-CSF and IL-4 for 6days.
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